Finding the Fourth Proportional to 2,619.61, 3,615.90 and 1,677.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619.61 : 3,615.90 = 1,677.93 : x
2. Step 2: Convert to fraction form
   2,619.61/3,615.90 = 1,677.93/x
3. Step 3: Cross multiply
   2,619.61x = 3,615.90 × 1,677.93
4. Step 4: Simplify right side
   2,619.61x = 6,067,222.89
5. Step 5: Solve for x
   x = 6,067,222.89/2,619.61
6. Step 6: Final answer
   x = 2,316.08