Finding the Fourth Proportional to 3,658.96, 5,488.35 and 1,061.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,658.96 : 5,488.35 = 1,061.89 : x
2. Step 2: Convert to fraction form
   3,658.96/5,488.35 = 1,061.89/x
3. Step 3: Cross multiply
   3,658.96x = 5,488.35 × 1,061.89
4. Step 4: Simplify right side
   3,658.96x = 5,828,023.98
5. Step 5: Solve for x
   x = 5,828,023.98/3,658.96
6. Step 6: Final answer
   x = 1,592.81