Finding the Fourth Proportional to 1,337.99, 1,846.49 and 778.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,337.99 : 1,846.49 = 778.68 : x
2. Step 2: Convert to fraction form
   1,337.99/1,846.49 = 778.68/x
3. Step 3: Cross multiply
   1,337.99x = 1,846.49 × 778.68
4. Step 4: Simplify right side
   1,337.99x = 1,437,820.94
5. Step 5: Solve for x
   x = 1,437,820.94/1,337.99
6. Step 6: Final answer
   x = 1,074.62