Finding the Fourth Proportional to 1,583.47, 2,185.15 and 875.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,583.47 : 2,185.15 = 875.37 : x
2. Step 2: Convert to fraction form
   1,583.47/2,185.15 = 875.37/x
3. Step 3: Cross multiply
   1,583.47x = 2,185.15 × 875.37
4. Step 4: Simplify right side
   1,583.47x = 1,912,814.76
5. Step 5: Solve for x
   x = 1,912,814.76/1,583.47
6. Step 6: Final answer
   x = 1,207.99