Finding the Fourth Proportional to 2,654.32, 3,981.99 and 899.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,654.32 : 3,981.99 = 899.61 : x
2. Step 2: Convert to fraction form
   2,654.32/3,981.99 = 899.61/x
3. Step 3: Cross multiply
   2,654.32x = 3,981.99 × 899.61
4. Step 4: Simplify right side
   2,654.32x = 3,582,249.77
5. Step 5: Solve for x
   x = 3,582,249.77/2,654.32
6. Step 6: Final answer
   x = 1,349.59