Finding the Fourth Proportional to 705,095.34, 973,091.81 and 399,225.62

Step by Step Solution

1. Step 1: Write the proportion equation
   705,095.34 : 973,091.81 = 399,225.62 : x
2. Step 2: Convert to fraction form
   705,095.34/973,091.81 = 399,225.62/x
3. Step 3: Cross multiply
   705,095.34x = 973,091.81 × 399,225.62
4. Step 4: Simplify right side
   705,095.34x = 388,483,177,296.78
5. Step 5: Solve for x
   x = 388,483,177,296.78/705,095.34
6. Step 6: Final answer
   x = 550,965.46