Finding the Fourth Proportional to 1,344.93, 1,856.06 and 785.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,344.93 : 1,856.06 = 785.31 : x
2. Step 2: Convert to fraction form
   1,344.93/1,856.06 = 785.31/x
3. Step 3: Cross multiply
   1,344.93x = 1,856.06 × 785.31
4. Step 4: Simplify right side
   1,344.93x = 1,457,582.48
5. Step 5: Solve for x
   x = 1,457,582.48/1,344.93
6. Step 6: Final answer
   x = 1,083.76