Finding the Fourth Proportional to 2,075,838.72, 3,113,850.72 and 636,418.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,075,838.72 : 3,113,850.72 = 636,418.56 : x
2. Step 2: Convert to fraction form
   2,075,838.72/3,113,850.72 = 636,418.56/x
3. Step 3: Cross multiply
   2,075,838.72x = 3,113,850.72 × 636,418.56
4. Step 4: Simplify right side
   2,075,838.72x = 1,981,712,391,277.36
5. Step 5: Solve for x
   x = 1,981,712,391,277.36/2,075,838.72
6. Step 6: Final answer
   x = 954,656.24