Finding the Fourth Proportional to 2,655.32, 3,983.49 and 900.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,655.32 : 3,983.49 = 900.61 : x
2. Step 2: Convert to fraction form
   2,655.32/3,983.49 = 900.61/x
3. Step 3: Cross multiply
   2,655.32x = 3,983.49 × 900.61
4. Step 4: Simplify right side
   2,655.32x = 3,587,570.93
5. Step 5: Solve for x
   x = 3,587,570.93/2,655.32
6. Step 6: Final answer
   x = 1,351.09