Finding the Fourth Proportional to 2,655.78, 3,665.01 and 1,607.84

Step by Step Solution

1. Step 1: Write the proportion equation
   2,655.78 : 3,665.01 = 1,607.84 : x
2. Step 2: Convert to fraction form
   2,655.78/3,665.01 = 1,607.84/x
3. Step 3: Cross multiply
   2,655.78x = 3,665.01 × 1,607.84
4. Step 4: Simplify right side
   2,655.78x = 5,892,731.35
5. Step 5: Solve for x
   x = 5,892,731.35/2,655.78
6. Step 6: Final answer
   x = 2,218.83