Finding the Fourth Proportional to 2,103.95, 3,158.25 and 1,778.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,103.95 : 3,158.25 = 1,778.92 : x
2. Step 2: Convert to fraction form
   2,103.95/3,158.25 = 1,778.92/x
3. Step 3: Cross multiply
   2,103.95x = 3,158.25 × 1,778.92
4. Step 4: Simplify right side
   2,103.95x = 5,618,274.09
5. Step 5: Solve for x
   x = 5,618,274.09/2,103.95
6. Step 6: Final answer
   x = 2,670.35