Finding the Fourth Proportional to 1,583.90, 2,185.23 and 1,025.07

Step by Step Solution

1. Step 1: Write the proportion equation
   1,583.90 : 2,185.23 = 1,025.07 : x
2. Step 2: Convert to fraction form
   1,583.90/2,185.23 = 1,025.07/x
3. Step 3: Cross multiply
   1,583.90x = 2,185.23 × 1,025.07
4. Step 4: Simplify right side
   1,583.90x = 2,240,013.72
5. Step 5: Solve for x
   x = 2,240,013.72/1,583.90
6. Step 6: Final answer
   x = 1,414.24