Finding the Fourth Proportional to 1,341.84, 1,851.56 and 782.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,341.84 : 1,851.56 = 782.50 : x
2. Step 2: Convert to fraction form
   1,341.84/1,851.56 = 782.50/x
3. Step 3: Cross multiply
   1,341.84x = 1,851.56 × 782.50
4. Step 4: Simplify right side
   1,341.84x = 1,448,845.70
5. Step 5: Solve for x
   x = 1,448,845.70/1,341.84
6. Step 6: Final answer
   x = 1,079.75