Finding the Fourth Proportional to 1,014.82, 1,400.37 and 572.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,014.82 : 1,400.37 = 572.78 : x
2. Step 2: Convert to fraction form
   1,014.82/1,400.37 = 572.78/x
3. Step 3: Cross multiply
   1,014.82x = 1,400.37 × 572.78
4. Step 4: Simplify right side
   1,014.82x = 802,103.93
5. Step 5: Solve for x
   x = 802,103.93/1,014.82
6. Step 6: Final answer
   x = 790.39