Finding the Fourth Proportional to 3,947,709.01, 5,922,128.38 and 1,215,487.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,947,709.01 : 5,922,128.38 = 1,215,487.59 : x
2. Step 2: Convert to fraction form
   3,947,709.01/5,922,128.38 = 1,215,487.59/x
3. Step 3: Cross multiply
   3,947,709.01x = 5,922,128.38 × 1,215,487.59
4. Step 4: Simplify right side
   3,947,709.01x = 7,198,273,552,276.81
5. Step 5: Solve for x
   x = 7,198,273,552,276.81/3,947,709.01
6. Step 6: Final answer
   x = 1,823,405.31