Finding the Fourth Proportional to 1,142.02, 1,576.91 and 723.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,142.02 : 1,576.91 = 723.04 : x
2. Step 2: Convert to fraction form
   1,142.02/1,576.91 = 723.04/x
3. Step 3: Cross multiply
   1,142.02x = 1,576.91 × 723.04
4. Step 4: Simplify right side
   1,142.02x = 1,140,169.01
5. Step 5: Solve for x
   x = 1,140,169.01/1,142.02
6. Step 6: Final answer
   x = 998.38