Finding the Fourth Proportional to 1,155.69, 1,729.41 and 926.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.69 : 1,729.41 = 926.04 : x
2. Step 2: Convert to fraction form
   1,155.69/1,729.41 = 926.04/x
3. Step 3: Cross multiply
   1,155.69x = 1,729.41 × 926.04
4. Step 4: Simplify right side
   1,155.69x = 1,601,502.84
5. Step 5: Solve for x
   x = 1,601,502.84/1,155.69
6. Step 6: Final answer
   x = 1,385.75