Finding the Fourth Proportional to 2,880.69, 3,974.33 and 1,886.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,880.69 : 3,974.33 = 1,886.51 : x
2. Step 2: Convert to fraction form
   2,880.69/3,974.33 = 1,886.51/x
3. Step 3: Cross multiply
   2,880.69x = 3,974.33 × 1,886.51
4. Step 4: Simplify right side
   2,880.69x = 7,497,613.29
5. Step 5: Solve for x
   x = 7,497,613.29/2,880.69
6. Step 6: Final answer
   x = 2,602.71