Finding the Fourth Proportional to 1,547.89, 2,322.86 and 1,028.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,547.89 : 2,322.86 = 1,028.47 : x
2. Step 2: Convert to fraction form
   1,547.89/2,322.86 = 1,028.47/x
3. Step 3: Cross multiply
   1,547.89x = 2,322.86 × 1,028.47
4. Step 4: Simplify right side
   1,547.89x = 2,388,991.82
5. Step 5: Solve for x
   x = 2,388,991.82/1,547.89
6. Step 6: Final answer
   x = 1,543.39