Finding the Fourth Proportional to 2,885.93, 3,978.98 and 2,407.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,885.93 : 3,978.98 = 2,407.59 : x
2. Step 2: Convert to fraction form
   2,885.93/3,978.98 = 2,407.59/x
3. Step 3: Cross multiply
   2,885.93x = 3,978.98 × 2,407.59
4. Step 4: Simplify right side
   2,885.93x = 9,579,740.42
5. Step 5: Solve for x
   x = 9,579,740.42/2,885.93
6. Step 6: Final answer
   x = 3,319.47