Finding the Fourth Proportional to 1,373.24, 1,895.25 and 783.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.24 : 1,895.25 = 783.89 : x
2. Step 2: Convert to fraction form
   1,373.24/1,895.25 = 783.89/x
3. Step 3: Cross multiply
   1,373.24x = 1,895.25 × 783.89
4. Step 4: Simplify right side
   1,373.24x = 1,485,667.52
5. Step 5: Solve for x
   x = 1,485,667.52/1,373.24
6. Step 6: Final answer
   x = 1,081.87