Finding the Fourth Proportional to 1,150.57, 1,587.69 and 730.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.57 : 1,587.69 = 730.99 : x
2. Step 2: Convert to fraction form
   1,150.57/1,587.69 = 730.99/x
3. Step 3: Cross multiply
   1,150.57x = 1,587.69 × 730.99
4. Step 4: Simplify right side
   1,150.57x = 1,160,585.51
5. Step 5: Solve for x
   x = 1,160,585.51/1,150.57
6. Step 6: Final answer
   x = 1,008.70