Finding the Fourth Proportional to 1,630.57, 2,444.63 and 981.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,630.57 : 2,444.63 = 981.15 : x
2. Step 2: Convert to fraction form
   1,630.57/2,444.63 = 981.15/x
3. Step 3: Cross multiply
   1,630.57x = 2,444.63 × 981.15
4. Step 4: Simplify right side
   1,630.57x = 2,398,548.72
5. Step 5: Solve for x
   x = 2,398,548.72/1,630.57
6. Step 6: Final answer
   x = 1,470.99