Finding the Fourth Proportional to 2,088.86, 3,145.68 and 1,818.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,088.86 : 3,145.68 = 1,818.23 : x
2. Step 2: Convert to fraction form
   2,088.86/3,145.68 = 1,818.23/x
3. Step 3: Cross multiply
   2,088.86x = 3,145.68 × 1,818.23
4. Step 4: Simplify right side
   2,088.86x = 5,719,554.02
5. Step 5: Solve for x
   x = 5,719,554.02/2,088.86
6. Step 6: Final answer
   x = 2,738.13