Finding the Fourth Proportional to 1,401.20, 1,932.73 and 876.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.20 : 1,932.73 = 876.32 : x
2. Step 2: Convert to fraction form
   1,401.20/1,932.73 = 876.32/x
3. Step 3: Cross multiply
   1,401.20x = 1,932.73 × 876.32
4. Step 4: Simplify right side
   1,401.20x = 1,693,689.95
5. Step 5: Solve for x
   x = 1,693,689.95/1,401.20
6. Step 6: Final answer
   x = 1,208.74