Finding the Fourth Proportional to 2,250.48, 3,105.63 and 1,318.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,250.48 : 3,105.63 = 1,318.98 : x
2. Step 2: Convert to fraction form
   2,250.48/3,105.63 = 1,318.98/x
3. Step 3: Cross multiply
   2,250.48x = 3,105.63 × 1,318.98
4. Step 4: Simplify right side
   2,250.48x = 4,096,263.86
5. Step 5: Solve for x
   x = 4,096,263.86/2,250.48
6. Step 6: Final answer
   x = 1,820.17