Finding the Fourth Proportional to 693,300.42, 956,760.91 and 406,825.28

Step by Step Solution

1. Step 1: Write the proportion equation
   693,300.42 : 956,760.91 = 406,825.28 : x
2. Step 2: Convert to fraction form
   693,300.42/956,760.91 = 406,825.28/x
3. Step 3: Cross multiply
   693,300.42x = 956,760.91 × 406,825.28
4. Step 4: Simplify right side
   693,300.42x = 389,234,525,103.81
5. Step 5: Solve for x
   x = 389,234,525,103.81/693,300.42
6. Step 6: Final answer
   x = 561,422.60