Finding the Fourth Proportional to 2,886.03, 4,328.91 and 938.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,886.03 : 4,328.91 = 938.25 : x
2. Step 2: Convert to fraction form
   2,886.03/4,328.91 = 938.25/x
3. Step 3: Cross multiply
   2,886.03x = 4,328.91 × 938.25
4. Step 4: Simplify right side
   2,886.03x = 4,061,599.81
5. Step 5: Solve for x
   x = 4,061,599.81/2,886.03
6. Step 6: Final answer
   x = 1,407.33