Finding the Fourth Proportional to 1,337.57, 1,845.96 and 778.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.57 : 1,845.96 = 778.00 : x
2. Step 2: Convert to fraction form
   1,337.57/1,845.96 = 778.00/x
3. Step 3: Cross multiply
   1,337.57x = 1,845.96 × 778.00
4. Step 4: Simplify right side
   1,337.57x = 1,436,156.27
5. Step 5: Solve for x
   x = 1,436,156.27/1,337.57
6. Step 6: Final answer
   x = 1,073.71