Finding the Fourth Proportional to 4,086.51, 5,638.89 and 2,407.56

Step by Step Solution

1. Step 1: Write the proportion equation
   4,086.51 : 5,638.89 = 2,407.56 : x
2. Step 2: Convert to fraction form
   4,086.51/5,638.89 = 2,407.56/x
3. Step 3: Cross multiply
   4,086.51x = 5,638.89 × 2,407.56
4. Step 4: Simplify right side
   4,086.51x = 13,575,966.01
5. Step 5: Solve for x
   x = 13,575,966.01/4,086.51
6. Step 6: Final answer
   x = 3,322.14