Finding the Fourth Proportional to 1,086.52, 1,627.59 and 500.70

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.52 : 1,627.59 = 500.70 : x
2. Step 2: Convert to fraction form
   1,086.52/1,627.59 = 500.70/x
3. Step 3: Cross multiply
   1,086.52x = 1,627.59 × 500.70
4. Step 4: Simplify right side
   1,086.52x = 814,931.81
5. Step 5: Solve for x
   x = 814,931.81/1,086.52
6. Step 6: Final answer
   x = 750.04