Finding the Fourth Proportional to 1,872.81, 2,805.98 and 1,487.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,872.81 : 2,805.98 = 1,487.25 : x
2. Step 2: Convert to fraction form
   1,872.81/2,805.98 = 1,487.25/x
3. Step 3: Cross multiply
   1,872.81x = 2,805.98 × 1,487.25
4. Step 4: Simplify right side
   1,872.81x = 4,173,186.32
5. Step 5: Solve for x
   x = 4,173,186.32/1,872.81
6. Step 6: Final answer
   x = 2,228.30