Finding the Fourth Proportional to 1,594.20, 2,199.48 and 930.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,594.20 : 2,199.48 = 930.72 : x
2. Step 2: Convert to fraction form
   1,594.20/2,199.48 = 930.72/x
3. Step 3: Cross multiply
   1,594.20x = 2,199.48 × 930.72
4. Step 4: Simplify right side
   1,594.20x = 2,047,100.03
5. Step 5: Solve for x
   x = 2,047,100.03/1,594.20
6. Step 6: Final answer
   x = 1,284.09