Finding the Fourth Proportional to 705,613.52, 973,765.32 and 403,904.72

Step by Step Solution

1. Step 1: Write the proportion equation
   705,613.52 : 973,765.32 = 403,904.72 : x
2. Step 2: Convert to fraction form
   705,613.52/973,765.32 = 403,904.72/x
3. Step 3: Cross multiply
   705,613.52x = 973,765.32 × 403,904.72
4. Step 4: Simplify right side
   705,613.52x = 393,308,408,920.31
5. Step 5: Solve for x
   x = 393,308,408,920.31/705,613.52
6. Step 6: Final answer
   x = 557,399.20