Finding the Fourth Proportional to 3,854.00, 5,318.51 and 2,085.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,854.00 : 5,318.51 = 2,085.60 : x
2. Step 2: Convert to fraction form
   3,854.00/5,318.51 = 2,085.60/x
3. Step 3: Cross multiply
   3,854.00x = 5,318.51 × 2,085.60
4. Step 4: Simplify right side
   3,854.00x = 11,092,274.03
5. Step 5: Solve for x
   x = 11,092,274.03/3,854.00
6. Step 6: Final answer
   x = 2,878.12