Finding the Fourth Proportional to 3,640.52, 5,459.50 and 1,042.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,640.52 : 5,459.50 = 1,042.76 : x
2. Step 2: Convert to fraction form
   3,640.52/5,459.50 = 1,042.76/x
3. Step 3: Cross multiply
   3,640.52x = 5,459.50 × 1,042.76
4. Step 4: Simplify right side
   3,640.52x = 5,692,948.22
5. Step 5: Solve for x
   x = 5,692,948.22/3,640.52
6. Step 6: Final answer
   x = 1,563.77