Finding the Fourth Proportional to 1,012.74, 1,397.61 and 593.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,012.74 : 1,397.61 = 593.37 : x
2. Step 2: Convert to fraction form
   1,012.74/1,397.61 = 593.37/x
3. Step 3: Cross multiply
   1,012.74x = 1,397.61 × 593.37
4. Step 4: Simplify right side
   1,012.74x = 829,299.85
5. Step 5: Solve for x
   x = 829,299.85/1,012.74
6. Step 6: Final answer
   x = 818.87