Finding the Fourth Proportional to 793,490.72, 1,189,860.86 and 307,400.54

Step by Step Solution

1. Step 1: Write the proportion equation
   793,490.72 : 1,189,860.86 = 307,400.54 : x
2. Step 2: Convert to fraction form
   793,490.72/1,189,860.86 = 307,400.54/x
3. Step 3: Cross multiply
   793,490.72x = 1,189,860.86 × 307,400.54
4. Step 4: Simplify right side
   793,490.72x = 365,763,870,888.86
5. Step 5: Solve for x
   x = 365,763,870,888.86/793,490.72
6. Step 6: Final answer
   x = 460,955.45