Finding the Fourth Proportional to 2,565.71, 3,845.95 and 899.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,565.71 : 3,845.95 = 899.34 : x
2. Step 2: Convert to fraction form
   2,565.71/3,845.95 = 899.34/x
3. Step 3: Cross multiply
   2,565.71x = 3,845.95 × 899.34
4. Step 4: Simplify right side
   2,565.71x = 3,458,816.67
5. Step 5: Solve for x
   x = 3,458,816.67/2,565.71
6. Step 6: Final answer
   x = 1,348.09