Finding the Fourth Proportional to 1,049.57, 1,448.32 and 607.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,049.57 : 1,448.32 = 607.50 : x
2. Step 2: Convert to fraction form
   1,049.57/1,448.32 = 607.50/x
3. Step 3: Cross multiply
   1,049.57x = 1,448.32 × 607.50
4. Step 4: Simplify right side
   1,049.57x = 879,854.40
5. Step 5: Solve for x
   x = 879,854.40/1,049.57
6. Step 6: Final answer
   x = 838.30