Finding the Fourth Proportional to 1,504.71, 2,076.21 and 875.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,504.71 : 2,076.21 = 875.31 : x
2. Step 2: Convert to fraction form
   1,504.71/2,076.21 = 875.31/x
3. Step 3: Cross multiply
   1,504.71x = 2,076.21 × 875.31
4. Step 4: Simplify right side
   1,504.71x = 1,817,327.38
5. Step 5: Solve for x
   x = 1,817,327.38/1,504.71
6. Step 6: Final answer
   x = 1,207.76