Finding the Fourth Proportional to 1,251.37, 1,878.27 and 1,023.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,251.37 : 1,878.27 = 1,023.05 : x
2. Step 2: Convert to fraction form
   1,251.37/1,878.27 = 1,023.05/x
3. Step 3: Cross multiply
   1,251.37x = 1,878.27 × 1,023.05
4. Step 4: Simplify right side
   1,251.37x = 1,921,568.82
5. Step 5: Solve for x
   x = 1,921,568.82/1,251.37
6. Step 6: Final answer
   x = 1,535.58