Finding the Fourth Proportional to 1,594.38, 2,199.99 and 931.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,594.38 : 2,199.99 = 931.22 : x
2. Step 2: Convert to fraction form
   1,594.38/2,199.99 = 931.22/x
3. Step 3: Cross multiply
   1,594.38x = 2,199.99 × 931.22
4. Step 4: Simplify right side
   1,594.38x = 2,048,673.76
5. Step 5: Solve for x
   x = 2,048,673.76/1,594.38
6. Step 6: Final answer
   x = 1,284.93