Finding the Fourth Proportional to 2,593.81, 3,888.55 and 1,868.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,593.81 : 3,888.55 = 1,868.05 : x
2. Step 2: Convert to fraction form
   2,593.81/3,888.55 = 1,868.05/x
3. Step 3: Cross multiply
   2,593.81x = 3,888.55 × 1,868.05
4. Step 4: Simplify right side
   2,593.81x = 7,264,005.83
5. Step 5: Solve for x
   x = 7,264,005.83/2,593.81
6. Step 6: Final answer
   x = 2,800.52