Finding the Fourth Proportional to 2,545,285, 3,817,950.54 and 772,357

Step by Step Solution

1. Step 1: Write the proportion equation
   2,545,285 : 3,817,950.54 = 772,357 : x
2. Step 2: Convert to fraction form
   2,545,285/3,817,950.54 = 772,357/x
3. Step 3: Cross multiply
   2,545,285x = 3,817,950.54 × 772,357
4. Step 4: Simplify right side
   2,545,285x = 2,948,820,825,222.78
5. Step 5: Solve for x
   x = 2,948,820,825,222.78/2,545,285
6. Step 6: Final answer
   x = 1,158,542.49