Finding the Fourth Proportional to 1,813.28, 2,494.71 and 1,599.57

Step by Step Solution

1. Step 1: Write the proportion equation
   1,813.28 : 2,494.71 = 1,599.57 : x
2. Step 2: Convert to fraction form
   1,813.28/2,494.71 = 1,599.57/x
3. Step 3: Cross multiply
   1,813.28x = 2,494.71 × 1,599.57
4. Step 4: Simplify right side
   1,813.28x = 3,990,463.27
5. Step 5: Solve for x
   x = 3,990,463.27/1,813.28
6. Step 6: Final answer
   x = 2,200.69