Finding the Fourth Proportional to 1,341.73, 1,851.89 and 782.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.73 : 1,851.89 = 782.30 : x
2. Step 2: Convert to fraction form
   1,341.73/1,851.89 = 782.30/x
3. Step 3: Cross multiply
   1,341.73x = 1,851.89 × 782.30
4. Step 4: Simplify right side
   1,341.73x = 1,448,733.55
5. Step 5: Solve for x
   x = 1,448,733.55/1,341.73
6. Step 6: Final answer
   x = 1,079.75