Finding the Fourth Proportional to 2,326,978.43, 3,208,582.62 and 1,638,430.19

Step by Step Solution

1. Step 1: Write the proportion equation
   2,326,978.43 : 3,208,582.62 = 1,638,430.19 : x
2. Step 2: Convert to fraction form
   2,326,978.43/3,208,582.62 = 1,638,430.19/x
3. Step 3: Cross multiply
   2,326,978.43x = 3,208,582.62 × 1,638,430.19
4. Step 4: Simplify right side
   2,326,978.43x = 5,257,038,615,674.39
5. Step 5: Solve for x
   x = 5,257,038,615,674.39/2,326,978.43
6. Step 6: Final answer
   x = 2,259,169.47