Finding the Fourth Proportional to 4,872.10, 7,300.84 and 2,922.16

Step by Step Solution

1. Step 1: Write the proportion equation
   4,872.10 : 7,300.84 = 2,922.16 : x
2. Step 2: Convert to fraction form
   4,872.10/7,300.84 = 2,922.16/x
3. Step 3: Cross multiply
   4,872.10x = 7,300.84 × 2,922.16
4. Step 4: Simplify right side
   4,872.10x = 21,334,222.61
5. Step 5: Solve for x
   x = 21,334,222.61/4,872.10
6. Step 6: Final answer
   x = 4,378.86