Finding the Fourth Proportional to 2,637,612, 3,639,906.72 and 1,430,388

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637,612 : 3,639,906.72 = 1,430,388 : x
2. Step 2: Convert to fraction form
   2,637,612/3,639,906.72 = 1,430,388/x
3. Step 3: Cross multiply
   2,637,612x = 3,639,906.72 × 1,430,388
4. Step 4: Simplify right side
   2,637,612x = 5,206,478,893,407.36
5. Step 5: Solve for x
   x = 5,206,478,893,407.36/2,637,612
6. Step 6: Final answer
   x = 1,973,936.61