Finding the Fourth Proportional to 1,130.16, 1,560.69 and 738.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,130.16 : 1,560.69 = 738.12 : x
2. Step 2: Convert to fraction form
   1,130.16/1,560.69 = 738.12/x
3. Step 3: Cross multiply
   1,130.16x = 1,560.69 × 738.12
4. Step 4: Simplify right side
   1,130.16x = 1,151,976.50
5. Step 5: Solve for x
   x = 1,151,976.50/1,130.16
6. Step 6: Final answer
   x = 1,019.30