Finding the Fourth Proportional to 2,263.39, 3,123.31 and 1,255.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,263.39 : 3,123.31 = 1,255.00 : x
2. Step 2: Convert to fraction form
   2,263.39/3,123.31 = 1,255.00/x
3. Step 3: Cross multiply
   2,263.39x = 3,123.31 × 1,255.00
4. Step 4: Simplify right side
   2,263.39x = 3,919,753.51
5. Step 5: Solve for x
   x = 3,919,753.51/2,263.39
6. Step 6: Final answer
   x = 1,731.80