Finding the Fourth Proportional to 2,655.16, 3,981.39 and 899.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,655.16 : 3,981.39 = 899.62 : x
2. Step 2: Convert to fraction form
   2,655.16/3,981.39 = 899.62/x
3. Step 3: Cross multiply
   2,655.16x = 3,981.39 × 899.62
4. Step 4: Simplify right side
   2,655.16x = 3,581,738.07
5. Step 5: Solve for x
   x = 3,581,738.07/2,655.16
6. Step 6: Final answer
   x = 1,348.97