Finding the Fourth Proportional to 1,342.84, 1,852.98 and 783.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,342.84 : 1,852.98 = 783.16 : x
2. Step 2: Convert to fraction form
   1,342.84/1,852.98 = 783.16/x
3. Step 3: Cross multiply
   1,342.84x = 1,852.98 × 783.16
4. Step 4: Simplify right side
   1,342.84x = 1,451,179.82
5. Step 5: Solve for x
   x = 1,451,179.82/1,342.84
6. Step 6: Final answer
   x = 1,080.68