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Finding the Fourth Proportional to 1,266.82, 1,738.83 and 1,123.82

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Solution

The fourth proportional to 1,266.82, 1,738.83 and 1,123.82 is: 1,542.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,266.82 : 1,738.83 = 1,123.82 : x
  2. Step 2: Convert to fraction form
    1,266.82/1,738.83 = 1,123.82/x
  3. Step 3: Cross multiply
    1,266.82x = 1,738.83 × 1,123.82
  4. Step 4: Simplify right side
    1,266.82x = 1,954,131.93
  5. Step 5: Solve for x
    x = 1,954,131.93/1,266.82
  6. Step 6: Final answer
    x = 1,542.55

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