Finding the Fourth Proportional to 3,578,139.72, 5,366,606.94 and 1,019,174.76

Step by Step Solution

1. Step 1: Write the proportion equation
   3,578,139.72 : 5,366,606.94 = 1,019,174.76 : x
2. Step 2: Convert to fraction form
   3,578,139.72/5,366,606.94 = 1,019,174.76/x
3. Step 3: Cross multiply
   3,578,139.72x = 5,366,606.94 × 1,019,174.76
4. Step 4: Simplify right side
   3,578,139.72x = 5,469,510,340,088.84
5. Step 5: Solve for x
   x = 5,469,510,340,088.84/3,578,139.72
6. Step 6: Final answer
   x = 1,528,590.49