Finding the Fourth Proportional to 2,165.00, 3,248.00 and 778.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,165.00 : 3,248.00 = 778.47 : x
2. Step 2: Convert to fraction form
   2,165.00/3,248.00 = 778.47/x
3. Step 3: Cross multiply
   2,165.00x = 3,248.00 × 778.47
4. Step 4: Simplify right side
   2,165.00x = 2,528,466.67
5. Step 5: Solve for x
   x = 2,528,466.67/2,165.00
6. Step 6: Final answer
   x = 1,167.89