Finding the Fourth Proportional to 2,572.52, 3,858.48 and 1,091.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,572.52 : 3,858.48 = 1,091.96 : x
2. Step 2: Convert to fraction form
   2,572.52/3,858.48 = 1,091.96/x
3. Step 3: Cross multiply
   2,572.52x = 3,858.48 × 1,091.96
4. Step 4: Simplify right side
   2,572.52x = 4,213,301.73
5. Step 5: Solve for x
   x = 4,213,301.73/2,572.52
6. Step 6: Final answer
   x = 1,637.81