Finding the Fourth Proportional to 2,326,976.91, 3,208,580.55 and 1,638,428.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,326,976.91 : 3,208,580.55 = 1,638,428.67 : x
2. Step 2: Convert to fraction form
   2,326,976.91/3,208,580.55 = 1,638,428.67/x
3. Step 3: Cross multiply
   2,326,976.91x = 3,208,580.55 × 1,638,428.67
4. Step 4: Simplify right side
   2,326,976.91x = 5,257,030,363,124.37
5. Step 5: Solve for x
   x = 5,257,030,363,124.37/2,326,976.91
6. Step 6: Final answer
   x = 2,259,167.39