Finding the Fourth Proportional to 562,773.69, 776,103.05 and 520,974.59

Step by Step Solution

1. Step 1: Write the proportion equation
   562,773.69 : 776,103.05 = 520,974.59 : x
2. Step 2: Convert to fraction form
   562,773.69/776,103.05 = 520,974.59/x
3. Step 3: Cross multiply
   562,773.69x = 776,103.05 × 520,974.59
4. Step 4: Simplify right side
   562,773.69x = 404,329,965,693.42
5. Step 5: Solve for x
   x = 404,329,965,693.42/562,773.69
6. Step 6: Final answer
   x = 718,459.25