Finding the Fourth Proportional to 2,654.63, 3,981.71 and 899.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.63 : 3,981.71 = 899.59 : x
2. Step 2: Convert to fraction form
   2,654.63/3,981.71 = 899.59/x
3. Step 3: Cross multiply
   2,654.63x = 3,981.71 × 899.59
4. Step 4: Simplify right side
   2,654.63x = 3,581,892.05
5. Step 5: Solve for x
   x = 3,581,892.05/2,654.63
6. Step 6: Final answer
   x = 1,349.30