Finding the Fourth Proportional to 2,230.52, 3,077.94 and 1,235.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,230.52 : 3,077.94 = 1,235.78 : x
2. Step 2: Convert to fraction form
   2,230.52/3,077.94 = 1,235.78/x
3. Step 3: Cross multiply
   2,230.52x = 3,077.94 × 1,235.78
4. Step 4: Simplify right side
   2,230.52x = 3,803,656.69
5. Step 5: Solve for x
   x = 3,803,656.69/2,230.52
6. Step 6: Final answer
   x = 1,705.28