Finding the Fourth Proportional to 4,788.16, 7,189.31 and 2,946.98

Step by Step Solution

1. Step 1: Write the proportion equation
   4,788.16 : 7,189.31 = 2,946.98 : x
2. Step 2: Convert to fraction form
   4,788.16/7,189.31 = 2,946.98/x
3. Step 3: Cross multiply
   4,788.16x = 7,189.31 × 2,946.98
4. Step 4: Simplify right side
   4,788.16x = 21,186,761.55
5. Step 5: Solve for x
   x = 21,186,761.55/4,788.16
6. Step 6: Final answer
   x = 4,424.82