Finding the Fourth Proportional to 2,885.98, 4,329.57 and 938.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,885.98 : 4,329.57 = 938.02 : x
2. Step 2: Convert to fraction form
   2,885.98/4,329.57 = 938.02/x
3. Step 3: Cross multiply
   2,885.98x = 4,329.57 × 938.02
4. Step 4: Simplify right side
   2,885.98x = 4,061,223.25
5. Step 5: Solve for x
   x = 4,061,223.25/2,885.98
6. Step 6: Final answer
   x = 1,407.23