Finding the Fourth Proportional to 1,016.77, 1,523.78 and 741.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,016.77 : 1,523.78 = 741.57 : x
2. Step 2: Convert to fraction form
   1,016.77/1,523.78 = 741.57/x
3. Step 3: Cross multiply
   1,016.77x = 1,523.78 × 741.57
4. Step 4: Simplify right side
   1,016.77x = 1,129,985.83
5. Step 5: Solve for x
   x = 1,129,985.83/1,016.77
6. Step 6: Final answer
   x = 1,111.35