Finding the Fourth Proportional to 765,123.69, 1,054,196.33 and 506,561.97

Step by Step Solution

1. Step 1: Write the proportion equation
   765,123.69 : 1,054,196.33 = 506,561.97 : x
2. Step 2: Convert to fraction form
   765,123.69/1,054,196.33 = 506,561.97/x
3. Step 3: Cross multiply
   765,123.69x = 1,054,196.33 × 506,561.97
4. Step 4: Simplify right side
   765,123.69x = 534,015,767,158.76
5. Step 5: Solve for x
   x = 534,015,767,158.76/765,123.69
6. Step 6: Final answer
   x = 697,946.98