Finding the Fourth Proportional to 1,342.10, 1,851.94 and 782.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.10 : 1,851.94 = 782.48 : x
2. Step 2: Convert to fraction form
   1,342.10/1,851.94 = 782.48/x
3. Step 3: Cross multiply
   1,342.10x = 1,851.94 × 782.48
4. Step 4: Simplify right side
   1,342.10x = 1,449,106.01
5. Step 5: Solve for x
   x = 1,449,106.01/1,342.10
6. Step 6: Final answer
   x = 1,079.73