Finding the Fourth Proportional to 1,201.05, 1,792.89 and 1,055.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,201.05 : 1,792.89 = 1,055.25 : x
2. Step 2: Convert to fraction form
   1,201.05/1,792.89 = 1,055.25/x
3. Step 3: Cross multiply
   1,201.05x = 1,792.89 × 1,055.25
4. Step 4: Simplify right side
   1,201.05x = 1,891,947.17
5. Step 5: Solve for x
   x = 1,891,947.17/1,201.05
6. Step 6: Final answer
   x = 1,575.24