Finding the Fourth Proportional to 2,116.12, 2,915.02 and 1,800.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116.12 : 2,915.02 = 1,800.37 : x
2. Step 2: Convert to fraction form
   2,116.12/2,915.02 = 1,800.37/x
3. Step 3: Cross multiply
   2,116.12x = 2,915.02 × 1,800.37
4. Step 4: Simplify right side
   2,116.12x = 5,248,112.25
5. Step 5: Solve for x
   x = 5,248,112.25/2,116.12
6. Step 6: Final answer
   x = 2,480.07