Finding the Fourth Proportional to 2,138,642.06, 2,951,325.60 and 1,279,404.32

Step by Step Solution

1. Step 1: Write the proportion equation
   2,138,642.06 : 2,951,325.60 = 1,279,404.32 : x
2. Step 2: Convert to fraction form
   2,138,642.06/2,951,325.60 = 1,279,404.32/x
3. Step 3: Cross multiply
   2,138,642.06x = 2,951,325.60 × 1,279,404.32
4. Step 4: Simplify right side
   2,138,642.06x = 3,775,938,722,366.59
5. Step 5: Solve for x
   x = 3,775,938,722,366.59/2,138,642.06
6. Step 6: Final answer
   x = 1,765,577.70