Finding the Fourth Proportional to 1,139.77, 1,700.93 and 1,016.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,139.77 : 1,700.93 = 1,016.75 : x
2. Step 2: Convert to fraction form
   1,139.77/1,700.93 = 1,016.75/x
3. Step 3: Cross multiply
   1,139.77x = 1,700.93 × 1,016.75
4. Step 4: Simplify right side
   1,139.77x = 1,729,427.37
5. Step 5: Solve for x
   x = 1,729,427.37/1,139.77
6. Step 6: Final answer
   x = 1,517.35