Finding the Fourth Proportional to 2,093.37, 3,140.54 and 778.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,093.37 : 3,140.54 = 778.05 : x
2. Step 2: Convert to fraction form
   2,093.37/3,140.54 = 778.05/x
3. Step 3: Cross multiply
   2,093.37x = 3,140.54 × 778.05
4. Step 4: Simplify right side
   2,093.37x = 2,443,496.17
5. Step 5: Solve for x
   x = 2,443,496.17/2,093.37
6. Step 6: Final answer
   x = 1,167.26