Finding the Fourth Proportional to 1,155.93, 1,733.52 and 386.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.93 : 1,733.52 = 386.25 : x
2. Step 2: Convert to fraction form
   1,155.93/1,733.52 = 386.25/x
3. Step 3: Cross multiply
   1,155.93x = 1,733.52 × 386.25
4. Step 4: Simplify right side
   1,155.93x = 669,572.10
5. Step 5: Solve for x
   x = 669,572.10/1,155.93
6. Step 6: Final answer
   x = 579.25