Finding the Fourth Proportional to 3,892.39, 5,371.71 and 2,124.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,892.39 : 5,371.71 = 2,124.02 : x
2. Step 2: Convert to fraction form
   3,892.39/5,371.71 = 2,124.02/x
3. Step 3: Cross multiply
   3,892.39x = 5,371.71 × 2,124.02
4. Step 4: Simplify right side
   3,892.39x = 11,409,619.47
5. Step 5: Solve for x
   x = 11,409,619.47/3,892.39
6. Step 6: Final answer
   x = 2,931.26