Finding the Fourth Proportional to 3,724.17, 5,139.33 and 2,045.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,724.17 : 5,139.33 = 2,045.60 : x
2. Step 2: Convert to fraction form
   3,724.17/5,139.33 = 2,045.60/x
3. Step 3: Cross multiply
   3,724.17x = 5,139.33 × 2,045.60
4. Step 4: Simplify right side
   3,724.17x = 10,512,987.75
5. Step 5: Solve for x
   x = 10,512,987.75/3,724.17
6. Step 6: Final answer
   x = 2,822.91