Finding the Fourth Proportional to 1,978,120.52, 2,967,148.35 and 630,264.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,978,120.52 : 2,967,148.35 = 630,264.81 : x
2. Step 2: Convert to fraction form
   1,978,120.52/2,967,148.35 = 630,264.81/x
3. Step 3: Cross multiply
   1,978,120.52x = 2,967,148.35 × 630,264.81
4. Step 4: Simplify right side
   1,978,120.52x = 1,870,089,191,054.56
5. Step 5: Solve for x
   x = 1,870,089,191,054.56/1,978,120.52
6. Step 6: Final answer
   x = 945,386.88