Finding the Fourth Proportional to 2,098.69, 3,147.30 and 617.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.69 : 3,147.30 = 617.50 : x
2. Step 2: Convert to fraction form
   2,098.69/3,147.30 = 617.50/x
3. Step 3: Cross multiply
   2,098.69x = 3,147.30 × 617.50
4. Step 4: Simplify right side
   2,098.69x = 1,943,457.75
5. Step 5: Solve for x
   x = 1,943,457.75/2,098.69
6. Step 6: Final answer
   x = 926.03