Finding the Fourth Proportional to 1,074,559.36, 1,482,941.76 and 621,762.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,074,559.36 : 1,482,941.76 = 621,762.56 : x
2. Step 2: Convert to fraction form
   1,074,559.36/1,482,941.76 = 621,762.56/x
3. Step 3: Cross multiply
   1,074,559.36x = 1,482,941.76 × 621,762.56
4. Step 4: Simplify right side
   1,074,559.36x = 922,037,665,028.51
5. Step 5: Solve for x
   x = 922,037,665,028.51/1,074,559.36
6. Step 6: Final answer
   x = 858,061.17