Finding the Fourth Proportional to 1,886.43, 2,808.52 and 1,877.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,886.43 : 2,808.52 = 1,877.31 : x
2. Step 2: Convert to fraction form
   1,886.43/2,808.52 = 1,877.31/x
3. Step 3: Cross multiply
   1,886.43x = 2,808.52 × 1,877.31
4. Step 4: Simplify right side
   1,886.43x = 5,272,462.68
5. Step 5: Solve for x
   x = 5,272,462.68/1,886.43
6. Step 6: Final answer
   x = 2,794.94