Finding the Fourth Proportional to 3,901.83, 5,852.31 and 980.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,901.83 : 5,852.31 = 980.15 : x
2. Step 2: Convert to fraction form
   3,901.83/5,852.31 = 980.15/x
3. Step 3: Cross multiply
   3,901.83x = 5,852.31 × 980.15
4. Step 4: Simplify right side
   3,901.83x = 5,736,112.38
5. Step 5: Solve for x
   x = 5,736,112.38/3,901.83
6. Step 6: Final answer
   x = 1,470.11