Finding the Fourth Proportional to 2,098.87, 3,145.23 and 1,868.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,098.87 : 3,145.23 = 1,868.22 : x
2. Step 2: Convert to fraction form
   2,098.87/3,145.23 = 1,868.22/x
3. Step 3: Cross multiply
   2,098.87x = 3,145.23 × 1,868.22
4. Step 4: Simplify right side
   2,098.87x = 5,875,981.59
5. Step 5: Solve for x
   x = 5,875,981.59/2,098.87
6. Step 6: Final answer
   x = 2,799.60