Finding the Fourth Proportional to 1,374.43, 1,896.72 and 785.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,374.43 : 1,896.72 = 785.15 : x
2. Step 2: Convert to fraction form
   1,374.43/1,896.72 = 785.15/x
3. Step 3: Cross multiply
   1,374.43x = 1,896.72 × 785.15
4. Step 4: Simplify right side
   1,374.43x = 1,489,209.71
5. Step 5: Solve for x
   x = 1,489,209.71/1,374.43
6. Step 6: Final answer
   x = 1,083.51