Finding the Fourth Proportional to 3,784,078.45, 5,672,742.81 and 1,387,364.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,784,078.45 : 5,672,742.81 = 1,387,364.59 : x
2. Step 2: Convert to fraction form
   3,784,078.45/5,672,742.81 = 1,387,364.59/x
3. Step 3: Cross multiply
   3,784,078.45x = 5,672,742.81 × 1,387,364.59
4. Step 4: Simplify right side
   3,784,078.45x = 7,870,162,502,771.10
5. Step 5: Solve for x
   x = 7,870,162,502,771.10/3,784,078.45
6. Step 6: Final answer
   x = 2,079,809.55