Finding the Fourth Proportional to 1,978,780.44, 2,968,384.50 and 630,626.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978,780.44 : 2,968,384.50 = 630,626.16 : x
2. Step 2: Convert to fraction form
   1,978,780.44/2,968,384.50 = 630,626.16/x
3. Step 3: Cross multiply
   1,978,780.44x = 2,968,384.50 × 630,626.16
4. Step 4: Simplify right side
   1,978,780.44x = 1,871,940,918,638.52
5. Step 5: Solve for x
   x = 1,871,940,918,638.52/1,978,780.44
6. Step 6: Final answer
   x = 946,007.39