Finding the Fourth Proportional to 1,356.32, 1,860.27 and 1,254.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.32 : 1,860.27 = 1,254.26 : x
2. Step 2: Convert to fraction form
   1,356.32/1,860.27 = 1,254.26/x
3. Step 3: Cross multiply
   1,356.32x = 1,860.27 × 1,254.26
4. Step 4: Simplify right side
   1,356.32x = 2,333,262.25
5. Step 5: Solve for x
   x = 2,333,262.25/1,356.32
6. Step 6: Final answer
   x = 1,720.29