Finding the Fourth Proportional to 2,193.83, 3,028.31 and 1,310.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,193.83 : 3,028.31 = 1,310.15 : x
2. Step 2: Convert to fraction form
   2,193.83/3,028.31 = 1,310.15/x
3. Step 3: Cross multiply
   2,193.83x = 3,028.31 × 1,310.15
4. Step 4: Simplify right side
   2,193.83x = 3,967,541.45
5. Step 5: Solve for x
   x = 3,967,541.45/2,193.83
6. Step 6: Final answer
   x = 1,808.50