Finding the Fourth Proportional to 3,825.61, 5,279.12 and 2,146.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,825.61 : 5,279.12 = 2,146.86 : x
2. Step 2: Convert to fraction form
   3,825.61/5,279.12 = 2,146.86/x
3. Step 3: Cross multiply
   3,825.61x = 5,279.12 × 2,146.86
4. Step 4: Simplify right side
   3,825.61x = 11,333,531.56
5. Step 5: Solve for x
   x = 11,333,531.56/3,825.61
6. Step 6: Final answer
   x = 2,962.55