Finding the Fourth Proportional to 1,010.07, 1,517.94 and 985.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,010.07 : 1,517.94 = 985.37 : x
2. Step 2: Convert to fraction form
   1,010.07/1,517.94 = 985.37/x
3. Step 3: Cross multiply
   1,010.07x = 1,517.94 × 985.37
4. Step 4: Simplify right side
   1,010.07x = 1,495,724.95
5. Step 5: Solve for x
   x = 1,495,724.95/1,010.07
6. Step 6: Final answer
   x = 1,480.81