Finding the Fourth Proportional to 2,263.18, 3,123.78 and 1,555.14

Step by Step Solution

1. Step 1: Write the proportion equation
   2,263.18 : 3,123.78 = 1,555.14 : x
2. Step 2: Convert to fraction form
   2,263.18/3,123.78 = 1,555.14/x
3. Step 3: Cross multiply
   2,263.18x = 3,123.78 × 1,555.14
4. Step 4: Simplify right side
   2,263.18x = 4,857,915.23
5. Step 5: Solve for x
   x = 4,857,915.23/2,263.18
6. Step 6: Final answer
   x = 2,146.50