Finding the Fourth Proportional to 1,450.84, 2,002.15 and 787.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,450.84 : 2,002.15 = 787.68 : x
2. Step 2: Convert to fraction form
   1,450.84/2,002.15 = 787.68/x
3. Step 3: Cross multiply
   1,450.84x = 2,002.15 × 787.68
4. Step 4: Simplify right side
   1,450.84x = 1,577,053.51
5. Step 5: Solve for x
   x = 1,577,053.51/1,450.84
6. Step 6: Final answer
   x = 1,086.99