Finding the Fourth Proportional to 1,034.37, 1,542.34 and 1,021.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,034.37 : 1,542.34 = 1,021.61 : x
2. Step 2: Convert to fraction form
   1,034.37/1,542.34 = 1,021.61/x
3. Step 3: Cross multiply
   1,034.37x = 1,542.34 × 1,021.61
4. Step 4: Simplify right side
   1,034.37x = 1,575,675.10
5. Step 5: Solve for x
   x = 1,575,675.10/1,034.37
6. Step 6: Final answer
   x = 1,523.32