Finding the Fourth Proportional to 2,138,391.91, 2,950,980.69 and 1,171,556.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,391.91 : 2,950,980.69 = 1,171,556.47 : x
2. Step 2: Convert to fraction form
   2,138,391.91/2,950,980.69 = 1,171,556.47/x
3. Step 3: Cross multiply
   2,138,391.91x = 2,950,980.69 × 1,171,556.47
4. Step 4: Simplify right side
   2,138,391.91x = 3,457,240,520,214.56
5. Step 5: Solve for x
   x = 3,457,240,520,214.56/2,138,391.91
6. Step 6: Final answer
   x = 1,616,747.85