Finding the Fourth Proportional to 3,525.87, 5,288.52 and 1,061.28

Step by Step Solution

1. Step 1: Write the proportion equation
   3,525.87 : 5,288.52 = 1,061.28 : x
2. Step 2: Convert to fraction form
   3,525.87/5,288.52 = 1,061.28/x
3. Step 3: Cross multiply
   3,525.87x = 5,288.52 × 1,061.28
4. Step 4: Simplify right side
   3,525.87x = 5,612,600.51
5. Step 5: Solve for x
   x = 5,612,600.51/3,525.87
6. Step 6: Final answer
   x = 1,591.83