Finding the Fourth Proportional to 699,066.72, 1,046,344.56 and 361,642.80

Step by Step Solution

1. Step 1: Write the proportion equation
   699,066.72 : 1,046,344.56 = 361,642.80 : x
2. Step 2: Convert to fraction form
   699,066.72/1,046,344.56 = 361,642.80/x
3. Step 3: Cross multiply
   699,066.72x = 1,046,344.56 × 361,642.80
4. Step 4: Simplify right side
   699,066.72x = 378,402,976,443.17
5. Step 5: Solve for x
   x = 378,402,976,443.17/699,066.72
6. Step 6: Final answer
   x = 541,297.37