Finding the Fourth Proportional to 2,288.53, 3,155.12 and 1,817.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,288.53 : 3,155.12 = 1,817.99 : x
2. Step 2: Convert to fraction form
   2,288.53/3,155.12 = 1,817.99/x
3. Step 3: Cross multiply
   2,288.53x = 3,155.12 × 1,817.99
4. Step 4: Simplify right side
   2,288.53x = 5,735,970.39
5. Step 5: Solve for x
   x = 5,735,970.39/2,288.53
6. Step 6: Final answer
   x = 2,506.40