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Finding the Fourth Proportional to 1,821.91, 2,730.98 and 998.45

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Solution

The fourth proportional to 1,821.91, 2,730.98 and 998.45 is: 1,496.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,821.91 : 2,730.98 = 998.45 : x
  2. Step 2: Convert to fraction form
    1,821.91/2,730.98 = 998.45/x
  3. Step 3: Cross multiply
    1,821.91x = 2,730.98 × 998.45
  4. Step 4: Simplify right side
    1,821.91x = 2,726,733.33
  5. Step 5: Solve for x
    x = 2,726,733.33/1,821.91
  6. Step 6: Final answer
    x = 1,496.63

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