Finding the Fourth Proportional to 1,372.89, 1,895.02 and 783.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,372.89 : 1,895.02 = 783.82 : x
2. Step 2: Convert to fraction form
   1,372.89/1,895.02 = 783.82/x
3. Step 3: Cross multiply
   1,372.89x = 1,895.02 × 783.82
4. Step 4: Simplify right side
   1,372.89x = 1,485,354.58
5. Step 5: Solve for x
   x = 1,485,354.58/1,372.89
6. Step 6: Final answer
   x = 1,081.92