Finding the Fourth Proportional to 2,376.32, 3,280.64 and 1,630.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,376.32 : 3,280.64 = 1,630.72 : x
2. Step 2: Convert to fraction form
   2,376.32/3,280.64 = 1,630.72/x
3. Step 3: Cross multiply
   2,376.32x = 3,280.64 × 1,630.72
4. Step 4: Simplify right side
   2,376.32x = 5,349,805.26
5. Step 5: Solve for x
   x = 5,349,805.26/2,376.32
6. Step 6: Final answer
   x = 2,251.30