Finding the Fourth Proportional to 2,381,697.78, 3,286,725.23 and 1,293,978.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,381,697.78 : 3,286,725.23 = 1,293,978.29 : x
2. Step 2: Convert to fraction form
   2,381,697.78/3,286,725.23 = 1,293,978.29/x
3. Step 3: Cross multiply
   2,381,697.78x = 3,286,725.23 × 1,293,978.29
4. Step 4: Simplify right side
   2,381,697.78x = 4,252,951,092,815.26
5. Step 5: Solve for x
   x = 4,252,951,092,815.26/2,381,697.78
6. Step 6: Final answer
   x = 1,785,680.42