Finding the Fourth Proportional to 1,042.02, 1,562.72 and 348.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,042.02 : 1,562.72 = 348.53 : x
2. Step 2: Convert to fraction form
   1,042.02/1,562.72 = 348.53/x
3. Step 3: Cross multiply
   1,042.02x = 1,562.72 × 348.53
4. Step 4: Simplify right side
   1,042.02x = 544,645.25
5. Step 5: Solve for x
   x = 544,645.25/1,042.02
6. Step 6: Final answer
   x = 522.68