Finding the Fourth Proportional to 1,854.72, 2,559.36 and 1,026.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,854.72 : 2,559.36 = 1,026.72 : x
2. Step 2: Convert to fraction form
   1,854.72/2,559.36 = 1,026.72/x
3. Step 3: Cross multiply
   1,854.72x = 2,559.36 × 1,026.72
4. Step 4: Simplify right side
   1,854.72x = 2,627,746.10
5. Step 5: Solve for x
   x = 2,627,746.10/1,854.72
6. Step 6: Final answer
   x = 1,416.79