Finding the Fourth Proportional to 3,840.99, 5,300.96 and 2,515.43

Step by Step Solution

1. Step 1: Write the proportion equation
   3,840.99 : 5,300.96 = 2,515.43 : x
2. Step 2: Convert to fraction form
   3,840.99/5,300.96 = 2,515.43/x
3. Step 3: Cross multiply
   3,840.99x = 5,300.96 × 2,515.43
4. Step 4: Simplify right side
   3,840.99x = 13,334,154.73
5. Step 5: Solve for x
   x = 13,334,154.73/3,840.99
6. Step 6: Final answer
   x = 3,471.54