Finding the Fourth Proportional to 2,275.86, 3,410.28 and 1,178.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,275.86 : 3,410.28 = 1,178.58 : x
2. Step 2: Convert to fraction form
   2,275.86/3,410.28 = 1,178.58/x
3. Step 3: Cross multiply
   2,275.86x = 3,410.28 × 1,178.58
4. Step 4: Simplify right side
   2,275.86x = 4,019,287.80
5. Step 5: Solve for x
   x = 4,019,287.80/2,275.86
6. Step 6: Final answer
   x = 1,766.05