Finding the Fourth Proportional to 1,450.78, 2,002.06 and 787.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,450.78 : 2,002.06 = 787.63 : x
2. Step 2: Convert to fraction form
   1,450.78/2,002.06 = 787.63/x
3. Step 3: Cross multiply
   1,450.78x = 2,002.06 × 787.63
4. Step 4: Simplify right side
   1,450.78x = 1,576,882.52
5. Step 5: Solve for x
   x = 1,576,882.52/1,450.78
6. Step 6: Final answer
   x = 1,086.92