Finding the Fourth Proportional to 1,025,648.22, 1,538,922.69 and 545,762.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,025,648.22 : 1,538,922.69 = 545,762.91 : x
2. Step 2: Convert to fraction form
   1,025,648.22/1,538,922.69 = 545,762.91/x
3. Step 3: Cross multiply
   1,025,648.22x = 1,538,922.69 × 545,762.91
4. Step 4: Simplify right side
   1,025,648.22x = 839,886,925,559.43
5. Step 5: Solve for x
   x = 839,886,925,559.43/1,025,648.22
6. Step 6: Final answer
   x = 818,884.01