Finding the Fourth Proportional to 2,886.53, 4,328.82 and 938.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.53 : 4,328.82 = 938.25 : x
2. Step 2: Convert to fraction form
   2,886.53/4,328.82 = 938.25/x
3. Step 3: Cross multiply
   2,886.53x = 4,328.82 × 938.25
4. Step 4: Simplify right side
   2,886.53x = 4,061,515.37
5. Step 5: Solve for x
   x = 4,061,515.37/2,886.53
6. Step 6: Final answer
   x = 1,407.06