Finding the Fourth Proportional to 1,544.05, 2,130.03 and 914.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,544.05 : 2,130.03 = 914.28 : x
2. Step 2: Convert to fraction form
   1,544.05/2,130.03 = 914.28/x
3. Step 3: Cross multiply
   1,544.05x = 2,130.03 × 914.28
4. Step 4: Simplify right side
   1,544.05x = 1,947,443.83
5. Step 5: Solve for x
   x = 1,947,443.83/1,544.05
6. Step 6: Final answer
   x = 1,261.26