Finding the Fourth Proportional to 1,337.31, 1,845.54 and 778.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.31 : 1,845.54 = 778.14 : x
2. Step 2: Convert to fraction form
   1,337.31/1,845.54 = 778.14/x
3. Step 3: Cross multiply
   1,337.31x = 1,845.54 × 778.14
4. Step 4: Simplify right side
   1,337.31x = 1,436,088.50
5. Step 5: Solve for x
   x = 1,436,088.50/1,337.31
6. Step 6: Final answer
   x = 1,073.86