Finding the Fourth Proportional to 2,141,612.82, 3,208,135.34 and 1,288,213.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,141,612.82 : 3,208,135.34 = 1,288,213.50 : x
2. Step 2: Convert to fraction form
   2,141,612.82/3,208,135.34 = 1,288,213.50/x
3. Step 3: Cross multiply
   2,141,612.82x = 3,208,135.34 × 1,288,213.50
4. Step 4: Simplify right side
   2,141,612.82x = 4,132,763,254,815.09
5. Step 5: Solve for x
   x = 4,132,763,254,815.09/2,141,612.82
6. Step 6: Final answer
   x = 1,929,743.42