Finding the Fourth Proportional to 4,710.72, 7,064.88 and 1,938.16

Step by Step Solution

1. Step 1: Write the proportion equation
   4,710.72 : 7,064.88 = 1,938.16 : x
2. Step 2: Convert to fraction form
   4,710.72/7,064.88 = 1,938.16/x
3. Step 3: Cross multiply
   4,710.72x = 7,064.88 × 1,938.16
4. Step 4: Simplify right side
   4,710.72x = 13,692,867.82
5. Step 5: Solve for x
   x = 13,692,867.82/4,710.72
6. Step 6: Final answer
   x = 2,906.75