Finding the Fourth Proportional to 3,526.39, 5,289.61 and 1,061.19

Step by Step Solution

1. Step 1: Write the proportion equation
   3,526.39 : 5,289.61 = 1,061.19 : x
2. Step 2: Convert to fraction form
   3,526.39/5,289.61 = 1,061.19/x
3. Step 3: Cross multiply
   3,526.39x = 5,289.61 × 1,061.19
4. Step 4: Simplify right side
   3,526.39x = 5,613,295.93
5. Step 5: Solve for x
   x = 5,613,295.93/3,526.39
6. Step 6: Final answer
   x = 1,591.80