Finding the Fourth Proportional to 2,978,654.16, 4,434,289.98 and 2,960,939.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978,654.16 : 4,434,289.98 = 2,960,939.28 : x
2. Step 2: Convert to fraction form
   2,978,654.16/4,434,289.98 = 2,960,939.28/x
3. Step 3: Cross multiply
   2,978,654.16x = 4,434,289.98 × 2,960,939.28
4. Step 4: Simplify right side
   2,978,654.16x = 13,129,663,380,692.41
5. Step 5: Solve for x
   x = 13,129,663,380,692.41/2,978,654.16
6. Step 6: Final answer
   x = 4,407,918.03