Finding the Fourth Proportional to 2,007,200.72, 2,769,940.04 and 1,089,430.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,007,200.72 : 2,769,940.04 = 1,089,430.20 : x
2. Step 2: Convert to fraction form
   2,007,200.72/2,769,940.04 = 1,089,430.20/x
3. Step 3: Cross multiply
   2,007,200.72x = 2,769,940.04 × 1,089,430.20
4. Step 4: Simplify right side
   2,007,200.72x = 3,017,656,315,930.78
5. Step 5: Solve for x
   x = 3,017,656,315,930.78/2,007,200.72
6. Step 6: Final answer
   x = 1,503,415.32