Finding the Fourth Proportional to 2,360.56, 3,257.55 and 1,312.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,360.56 : 3,257.55 = 1,312.63 : x
2. Step 2: Convert to fraction form
   2,360.56/3,257.55 = 1,312.63/x
3. Step 3: Cross multiply
   2,360.56x = 3,257.55 × 1,312.63
4. Step 4: Simplify right side
   2,360.56x = 4,275,957.86
5. Step 5: Solve for x
   x = 4,275,957.86/2,360.56
6. Step 6: Final answer
   x = 1,811.42