Finding the Fourth Proportional to 1,344.37, 1,855.33 and 784.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,344.37 : 1,855.33 = 784.87 : x
2. Step 2: Convert to fraction form
   1,344.37/1,855.33 = 784.87/x
3. Step 3: Cross multiply
   1,344.37x = 1,855.33 × 784.87
4. Step 4: Simplify right side
   1,344.37x = 1,456,192.86
5. Step 5: Solve for x
   x = 1,456,192.86/1,344.37
6. Step 6: Final answer
   x = 1,083.18