Finding the Fourth Proportional to 1,532.80, 2,298.42 and 752.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,532.80 : 2,298.42 = 752.86 : x
2. Step 2: Convert to fraction form
   1,532.80/2,298.42 = 752.86/x
3. Step 3: Cross multiply
   1,532.80x = 2,298.42 × 752.86
4. Step 4: Simplify right side
   1,532.80x = 1,730,388.48
5. Step 5: Solve for x
   x = 1,730,388.48/1,532.80
6. Step 6: Final answer
   x = 1,128.91