Finding the Fourth Proportional to 3,663.25, 5,055.29 and 2,091.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,663.25 : 5,055.29 = 2,091.31 : x
2. Step 2: Convert to fraction form
   3,663.25/5,055.29 = 2,091.31/x
3. Step 3: Cross multiply
   3,663.25x = 5,055.29 × 2,091.31
4. Step 4: Simplify right side
   3,663.25x = 10,572,168.07
5. Step 5: Solve for x
   x = 10,572,168.07/3,663.25
6. Step 6: Final answer
   x = 2,886.01