Finding the Fourth Proportional to 1,594.59, 2,200.53 and 931.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,594.59 : 2,200.53 = 931.31 : x
2. Step 2: Convert to fraction form
   1,594.59/2,200.53 = 931.31/x
3. Step 3: Cross multiply
   1,594.59x = 2,200.53 × 931.31
4. Step 4: Simplify right side
   1,594.59x = 2,049,375.59
5. Step 5: Solve for x
   x = 2,049,375.59/1,594.59
6. Step 6: Final answer
   x = 1,285.21