Finding the Fourth Proportional to 1,040.51, 1,551.72 and 1,026.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,040.51 : 1,551.72 = 1,026.56 : x
2. Step 2: Convert to fraction form
   1,040.51/1,551.72 = 1,026.56/x
3. Step 3: Cross multiply
   1,040.51x = 1,551.72 × 1,026.56
4. Step 4: Simplify right side
   1,040.51x = 1,592,933.68
5. Step 5: Solve for x
   x = 1,592,933.68/1,040.51
6. Step 6: Final answer
   x = 1,530.92