Finding the Fourth Proportional to 2,654.13, 3,981.76 and 899.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.13 : 3,981.76 = 899.05 : x
2. Step 2: Convert to fraction form
   2,654.13/3,981.76 = 899.05/x
3. Step 3: Cross multiply
   2,654.13x = 3,981.76 × 899.05
4. Step 4: Simplify right side
   2,654.13x = 3,579,776.92
5. Step 5: Solve for x
   x = 3,579,776.92/2,654.13
6. Step 6: Final answer
   x = 1,348.76