Finding the Fourth Proportional to 1,593.59, 2,199.15 and 930.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,593.59 : 2,199.15 = 930.31 : x
2. Step 2: Convert to fraction form
   1,593.59/2,199.15 = 930.31/x
3. Step 3: Cross multiply
   1,593.59x = 2,199.15 × 930.31
4. Step 4: Simplify right side
   1,593.59x = 2,045,891.92
5. Step 5: Solve for x
   x = 2,045,891.92/1,593.59
6. Step 6: Final answer
   x = 1,283.83