Finding the Fourth Proportional to 2,078.30, 3,103 and 1,870.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,078.30 : 3,103 = 1,870.94 : x
2. Step 2: Convert to fraction form
   2,078.30/3,103 = 1,870.94/x
3. Step 3: Cross multiply
   2,078.30x = 3,103 × 1,870.94
4. Step 4: Simplify right side
   2,078.30x = 5,805,526.82
5. Step 5: Solve for x
   x = 5,805,526.82/2,078.30
6. Step 6: Final answer
   x = 2,793.40