Finding the Fourth Proportional to 1,436.04, 2,151.60 and 787.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,436.04 : 2,151.60 = 787.22 : x
2. Step 2: Convert to fraction form
   1,436.04/2,151.60 = 787.22/x
3. Step 3: Cross multiply
   1,436.04x = 2,151.60 × 787.22
4. Step 4: Simplify right side
   1,436.04x = 1,693,782.55
5. Step 5: Solve for x
   x = 1,693,782.55/1,436.04
6. Step 6: Final answer
   x = 1,179.48