Finding the Fourth Proportional to 2,387,555.28, 3,579,081.69 and 1,188,343.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,387,555.28 : 3,579,081.69 = 1,188,343.92 : x
2. Step 2: Convert to fraction form
   2,387,555.28/3,579,081.69 = 1,188,343.92/x
3. Step 3: Cross multiply
   2,387,555.28x = 3,579,081.69 × 1,188,343.92
4. Step 4: Simplify right side
   2,387,555.28x = 4,253,179,965,494.83
5. Step 5: Solve for x
   x = 4,253,179,965,494.83/2,387,555.28
6. Step 6: Final answer
   x = 1,781,395.39