Finding the Fourth Proportional to 1,615.86, 2,425.30 and 794.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615.86 : 2,425.30 = 794.72 : x
2. Step 2: Convert to fraction form
   1,615.86/2,425.30 = 794.72/x
3. Step 3: Cross multiply
   1,615.86x = 2,425.30 × 794.72
4. Step 4: Simplify right side
   1,615.86x = 1,927,418.32
5. Step 5: Solve for x
   x = 1,927,418.32/1,615.86
6. Step 6: Final answer
   x = 1,192.82