Finding the Fourth Proportional to 2,422.17, 3,630.66 and 1,251.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,422.17 : 3,630.66 = 1,251.86 : x
2. Step 2: Convert to fraction form
   2,422.17/3,630.66 = 1,251.86/x
3. Step 3: Cross multiply
   2,422.17x = 3,630.66 × 1,251.86
4. Step 4: Simplify right side
   2,422.17x = 4,545,075.78
5. Step 5: Solve for x
   x = 4,545,075.78/2,422.17
6. Step 6: Final answer
   x = 1,876.45