Finding the Fourth Proportional to 1,012.50, 1,396.77 and 592.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012.50 : 1,396.77 = 592.59 : x
2. Step 2: Convert to fraction form
   1,012.50/1,396.77 = 592.59/x
3. Step 3: Cross multiply
   1,012.50x = 1,396.77 × 592.59
4. Step 4: Simplify right side
   1,012.50x = 827,716.91
5. Step 5: Solve for x
   x = 827,716.91/1,012.50
6. Step 6: Final answer
   x = 817.50