Finding the Fourth Proportional to 679,323.88, 937,446.72 and 388,925.83

Step by Step Solution

1. Step 1: Write the proportion equation
   679,323.88 : 937,446.72 = 388,925.83 : x
2. Step 2: Convert to fraction form
   679,323.88/937,446.72 = 388,925.83/x
3. Step 3: Cross multiply
   679,323.88x = 937,446.72 × 388,925.83
4. Step 4: Simplify right side
   679,323.88x = 364,597,243,656.78
5. Step 5: Solve for x
   x = 364,597,243,656.78/679,323.88
6. Step 6: Final answer
   x = 536,706.06