Finding the Fourth Proportional to 2,159,488.54, 2,978,290.78 and 1,616,915.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,159,488.54 : 2,978,290.78 = 1,616,915.71 : x
2. Step 2: Convert to fraction form
   2,159,488.54/2,978,290.78 = 1,616,915.71/x
3. Step 3: Cross multiply
   2,159,488.54x = 2,978,290.78 × 1,616,915.71
4. Step 4: Simplify right side
   2,159,488.54x = 4,815,645,151,130.15
5. Step 5: Solve for x
   x = 4,815,645,151,130.15/2,159,488.54
6. Step 6: Final answer
   x = 2,229,993.38