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Finding the Fourth Proportional to 1,962.70, 2,945.08 and 867.82

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Solution

The fourth proportional to 1,962.70, 2,945.08 and 867.82 is: 1,302.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,962.70 : 2,945.08 = 867.82 : x
  2. Step 2: Convert to fraction form
    1,962.70/2,945.08 = 867.82/x
  3. Step 3: Cross multiply
    1,962.70x = 2,945.08 × 867.82
  4. Step 4: Simplify right side
    1,962.70x = 2,555,799.33
  5. Step 5: Solve for x
    x = 2,555,799.33/1,962.70
  6. Step 6: Final answer
    x = 1,302.19

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