Finding the Fourth Proportional to 2,641,164, 3,963,097.17 and 1,257,864

Step by Step Solution

1. Step 1: Write the proportion equation
   2,641,164 : 3,963,097.17 = 1,257,864 : x
2. Step 2: Convert to fraction form
   2,641,164/3,963,097.17 = 1,257,864/x
3. Step 3: Cross multiply
   2,641,164x = 3,963,097.17 × 1,257,864
4. Step 4: Simplify right side
   2,641,164x = 4,985,037,258,644.88
5. Step 5: Solve for x
   x = 4,985,037,258,644.88/2,641,164
6. Step 6: Final answer
   x = 1,887,439.50