Finding the Fourth Proportional to 2,538,608.64, 3,808,908.72 and 1,117,668

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538,608.64 : 3,808,908.72 = 1,117,668 : x
2. Step 2: Convert to fraction form
   2,538,608.64/3,808,908.72 = 1,117,668/x
3. Step 3: Cross multiply
   2,538,608.64x = 3,808,908.72 × 1,117,668
4. Step 4: Simplify right side
   2,538,608.64x = 4,257,095,391,264.96
5. Step 5: Solve for x
   x = 4,257,095,391,264.96/2,538,608.64
6. Step 6: Final answer
   x = 1,676,940.40