Finding the Fourth Proportional to 3,789.60, 5,229.56 and 2,111.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,789.60 : 5,229.56 = 2,111.04 : x
2. Step 2: Convert to fraction form
   3,789.60/5,229.56 = 2,111.04/x
3. Step 3: Cross multiply
   3,789.60x = 5,229.56 × 2,111.04
4. Step 4: Simplify right side
   3,789.60x = 11,039,810.34
5. Step 5: Solve for x
   x = 11,039,810.34/3,789.60
6. Step 6: Final answer
   x = 2,913.19