Finding the Fourth Proportional to 2,547.86, 3,811.46 and 1,889.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547.86 : 3,811.46 = 1,889.33 : x
2. Step 2: Convert to fraction form
   2,547.86/3,811.46 = 1,889.33/x
3. Step 3: Cross multiply
   2,547.86x = 3,811.46 × 1,889.33
4. Step 4: Simplify right side
   2,547.86x = 7,201,077.22
5. Step 5: Solve for x
   x = 7,201,077.22/2,547.86
6. Step 6: Final answer
   x = 2,826.33