Finding the Fourth Proportional to 2,180,216.47, 3,270,848.15 and 684,308.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,180,216.47 : 3,270,848.15 = 684,308.47 : x
2. Step 2: Convert to fraction form
   2,180,216.47/3,270,848.15 = 684,308.47/x
3. Step 3: Cross multiply
   2,180,216.47x = 3,270,848.15 × 684,308.47
4. Step 4: Simplify right side
   2,180,216.47x = 2,238,269,089,707.29
5. Step 5: Solve for x
   x = 2,238,269,089,707.29/2,180,216.47
6. Step 6: Final answer
   x = 1,026,627.00