Finding the Fourth Proportional to 2,098.15, 3,147.42 and 928.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.15 : 3,147.42 = 928.00 : x
2. Step 2: Convert to fraction form
   2,098.15/3,147.42 = 928.00/x
3. Step 3: Cross multiply
   2,098.15x = 3,147.42 × 928.00
4. Step 4: Simplify right side
   2,098.15x = 2,920,797.89
5. Step 5: Solve for x
   x = 2,920,797.89/2,098.15
6. Step 6: Final answer
   x = 1,392.08