Finding the Fourth Proportional to 1,583.68, 2,185.31 and 875.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,583.68 : 2,185.31 = 875.47 : x
2. Step 2: Convert to fraction form
   1,583.68/2,185.31 = 875.47/x
3. Step 3: Cross multiply
   1,583.68x = 2,185.31 × 875.47
4. Step 4: Simplify right side
   1,583.68x = 1,913,173.35
5. Step 5: Solve for x
   x = 1,913,173.35/1,583.68
6. Step 6: Final answer
   x = 1,208.06