Finding the Fourth Proportional to 3,875.61, 5,345.63 and 2,548.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,875.61 : 5,345.63 = 2,548.89 : x
2. Step 2: Convert to fraction form
   3,875.61/5,345.63 = 2,548.89/x
3. Step 3: Cross multiply
   3,875.61x = 5,345.63 × 2,548.89
4. Step 4: Simplify right side
   3,875.61x = 13,625,422.85
5. Step 5: Solve for x
   x = 13,625,422.85/3,875.61
6. Step 6: Final answer
   x = 3,515.68