Finding the Fourth Proportional to 2,098.81, 2,894.88 and 1,818.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.81 : 2,894.88 = 1,818.55 : x
2. Step 2: Convert to fraction form
   2,098.81/2,894.88 = 1,818.55/x
3. Step 3: Cross multiply
   2,098.81x = 2,894.88 × 1,818.55
4. Step 4: Simplify right side
   2,098.81x = 5,264,484.02
5. Step 5: Solve for x
   x = 5,264,484.02/2,098.81
6. Step 6: Final answer
   x = 2,508.32