Finding the Fourth Proportional to 1,170.66, 1,616.06 and 1,010.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,170.66 : 1,616.06 = 1,010.52 : x
2. Step 2: Convert to fraction form
   1,170.66/1,616.06 = 1,010.52/x
3. Step 3: Cross multiply
   1,170.66x = 1,616.06 × 1,010.52
4. Step 4: Simplify right side
   1,170.66x = 1,633,055.90
5. Step 5: Solve for x
   x = 1,633,055.90/1,170.66
6. Step 6: Final answer
   x = 1,394.99