Finding the Fourth Proportional to 2,138,383.48, 2,950,968.18 and 1,278,943.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,383.48 : 2,950,968.18 = 1,278,943.72 : x
2. Step 2: Convert to fraction form
   2,138,383.48/2,950,968.18 = 1,278,943.72/x
3. Step 3: Cross multiply
   2,138,383.48x = 2,950,968.18 × 1,278,943.72
4. Step 4: Simplify right side
   2,138,383.48x = 3,774,122,221,730.83
5. Step 5: Solve for x
   x = 3,774,122,221,730.83/2,138,383.48
6. Step 6: Final answer
   x = 1,764,941.72