Finding the Fourth Proportional to 2,541.72, 3,813.78 and 899.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,541.72 : 3,813.78 = 899.04 : x
2. Step 2: Convert to fraction form
   2,541.72/3,813.78 = 899.04/x
3. Step 3: Cross multiply
   2,541.72x = 3,813.78 × 899.04
4. Step 4: Simplify right side
   2,541.72x = 3,428,740.77
5. Step 5: Solve for x
   x = 3,428,740.77/2,541.72
6. Step 6: Final answer
   x = 1,348.98