Finding the Fourth Proportional to 1,401.52, 1,932.84 and 877.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.52 : 1,932.84 = 877.60 : x
2. Step 2: Convert to fraction form
   1,401.52/1,932.84 = 877.60/x
3. Step 3: Cross multiply
   1,401.52x = 1,932.84 × 877.60
4. Step 4: Simplify right side
   1,401.52x = 1,696,260.38
5. Step 5: Solve for x
   x = 1,696,260.38/1,401.52
6. Step 6: Final answer
   x = 1,210.30