Finding the Fourth Proportional to 1,337.43, 1,845.89 and 778.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.43 : 1,845.89 = 778.07 : x
2. Step 2: Convert to fraction form
   1,337.43/1,845.89 = 778.07/x
3. Step 3: Cross multiply
   1,337.43x = 1,845.89 × 778.07
4. Step 4: Simplify right side
   1,337.43x = 1,436,231.63
5. Step 5: Solve for x
   x = 1,436,231.63/1,337.43
6. Step 6: Final answer
   x = 1,073.87