Finding the Fourth Proportional to 2,634,570, 3,951,864.72 and 640,026

Step by Step Solution

1. Step 1: Write the proportion equation
   2,634,570 : 3,951,864.72 = 640,026 : x
2. Step 2: Convert to fraction form
   2,634,570/3,951,864.72 = 640,026/x
3. Step 3: Cross multiply
   2,634,570x = 3,951,864.72 × 640,026
4. Step 4: Simplify right side
   2,634,570x = 2,529,296,169,282.72
5. Step 5: Solve for x
   x = 2,529,296,169,282.72/2,634,570
6. Step 6: Final answer
   x = 960,041.36