Finding the Fourth Proportional to 1,450.83, 2,002.18 and 787.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,450.83 : 2,002.18 = 787.72 : x
2. Step 2: Convert to fraction form
   1,450.83/2,002.18 = 787.72/x
3. Step 3: Cross multiply
   1,450.83x = 2,002.18 × 787.72
4. Step 4: Simplify right side
   1,450.83x = 1,577,160.72
5. Step 5: Solve for x
   x = 1,577,160.72/1,450.83
6. Step 6: Final answer
   x = 1,087.08