Finding the Fourth Proportional to 1,045.02, 1,442.06 and 572.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,045.02 : 1,442.06 = 572.89 : x
2. Step 2: Convert to fraction form
   1,045.02/1,442.06 = 572.89/x
3. Step 3: Cross multiply
   1,045.02x = 1,442.06 × 572.89
4. Step 4: Simplify right side
   1,045.02x = 826,141.75
5. Step 5: Solve for x
   x = 826,141.75/1,045.02
6. Step 6: Final answer
   x = 790.55