Finding the Fourth Proportional to 3,526.55, 5,289.95 and 1,061.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,526.55 : 5,289.95 = 1,061.72 : x
2. Step 2: Convert to fraction form
   3,526.55/5,289.95 = 1,061.72/x
3. Step 3: Cross multiply
   3,526.55x = 5,289.95 × 1,061.72
4. Step 4: Simplify right side
   3,526.55x = 5,616,419.26
5. Step 5: Solve for x
   x = 5,616,419.26/3,526.55
6. Step 6: Final answer
   x = 1,592.61