Finding the Fourth Proportional to 1,866.32, 2,800.09 and 892.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,866.32 : 2,800.09 = 892.50 : x
2. Step 2: Convert to fraction form
   1,866.32/2,800.09 = 892.50/x
3. Step 3: Cross multiply
   1,866.32x = 2,800.09 × 892.50
4. Step 4: Simplify right side
   1,866.32x = 2,499,080.33
5. Step 5: Solve for x
   x = 2,499,080.33/1,866.32
6. Step 6: Final answer
   x = 1,339.04