Finding the Fourth Proportional to 1,978,078.53, 2,967,565.32 and 630,317.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978,078.53 : 2,967,565.32 = 630,317.91 : x
2. Step 2: Convert to fraction form
   1,978,078.53/2,967,565.32 = 630,317.91/x
3. Step 3: Cross multiply
   1,978,078.53x = 2,967,565.32 × 630,317.91
4. Step 4: Simplify right side
   1,978,078.53x = 1,870,509,570,290.88
5. Step 5: Solve for x
   x = 1,870,509,570,290.88/1,978,078.53
6. Step 6: Final answer
   x = 945,619.47