Finding the Fourth Proportional to 705,846, 974,067.48 and 387,894

Step by Step Solution

1. Step 1: Write the proportion equation
   705,846 : 974,067.48 = 387,894 : x
2. Step 2: Convert to fraction form
   705,846/974,067.48 = 387,894/x
3. Step 3: Cross multiply
   705,846x = 974,067.48 × 387,894
4. Step 4: Simplify right side
   705,846x = 377,834,931,087.12
5. Step 5: Solve for x
   x = 377,834,931,087.12/705,846
6. Step 6: Final answer
   x = 535,293.72