Finding the Fourth Proportional to 1,080.02, 1,489.83 and 730.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,080.02 : 1,489.83 = 730.10 : x
2. Step 2: Convert to fraction form
   1,080.02/1,489.83 = 730.10/x
3. Step 3: Cross multiply
   1,080.02x = 1,489.83 × 730.10
4. Step 4: Simplify right side
   1,080.02x = 1,087,725.87
5. Step 5: Solve for x
   x = 1,087,725.87/1,080.02
6. Step 6: Final answer
   x = 1,007.13