Finding the Fourth Proportional to 2,996.16, 4,485.72 and 2,380.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,996.16 : 4,485.72 = 2,380.80 : x
2. Step 2: Convert to fraction form
   2,996.16/4,485.72 = 2,380.80/x
3. Step 3: Cross multiply
   2,996.16x = 4,485.72 × 2,380.80
4. Step 4: Simplify right side
   2,996.16x = 10,679,602.18
5. Step 5: Solve for x
   x = 10,679,602.18/2,996.16
6. Step 6: Final answer
   x = 3,564.43