Finding the Fourth Proportional to 1,651.25, 2,475.59 and 870.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,651.25 : 2,475.59 = 870.23 : x
2. Step 2: Convert to fraction form
   1,651.25/2,475.59 = 870.23/x
3. Step 3: Cross multiply
   1,651.25x = 2,475.59 × 870.23
4. Step 4: Simplify right side
   1,651.25x = 2,154,328.33
5. Step 5: Solve for x
   x = 2,154,328.33/1,651.25
6. Step 6: Final answer
   x = 1,304.67