Finding the Fourth Proportional to 685,779.82, 1,029,301.16 and 349,061.06

Step by Step Solution

1. Step 1: Write the proportion equation
   685,779.82 : 1,029,301.16 = 349,061.06 : x
2. Step 2: Convert to fraction form
   685,779.82/1,029,301.16 = 349,061.06/x
3. Step 3: Cross multiply
   685,779.82x = 1,029,301.16 × 349,061.06
4. Step 4: Simplify right side
   685,779.82x = 359,288,954,796.78
5. Step 5: Solve for x
   x = 359,288,954,796.78/685,779.82
6. Step 6: Final answer
   x = 523,912.99