Finding the Fourth Proportional to 1,035.37, 1,428.78 and 593.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,035.37 : 1,428.78 = 593.35 : x
2. Step 2: Convert to fraction form
   1,035.37/1,428.78 = 593.35/x
3. Step 3: Cross multiply
   1,035.37x = 1,428.78 × 593.35
4. Step 4: Simplify right side
   1,035.37x = 847,766.61
5. Step 5: Solve for x
   x = 847,766.61/1,035.37
6. Step 6: Final answer
   x = 818.81