Finding the Fourth Proportional to 1,400.38, 1,932.53 and 876.71

Step by Step Solution

1. Step 1: Write the proportion equation
   1,400.38 : 1,932.53 = 876.71 : x
2. Step 2: Convert to fraction form
   1,400.38/1,932.53 = 876.71/x
3. Step 3: Cross multiply
   1,400.38x = 1,932.53 × 876.71
4. Step 4: Simplify right side
   1,400.38x = 1,694,268.38
5. Step 5: Solve for x
   x = 1,694,268.38/1,400.38
6. Step 6: Final answer
   x = 1,209.86