Finding the Fourth Proportional to 710,924.82, 980,836.72 and 404,784.68

Step by Step Solution

1. Step 1: Write the proportion equation
   710,924.82 : 980,836.72 = 404,784.68 : x
2. Step 2: Convert to fraction form
   710,924.82/980,836.72 = 404,784.68/x
3. Step 3: Cross multiply
   710,924.82x = 980,836.72 × 404,784.68
4. Step 4: Simplify right side
   710,924.82x = 397,027,677,837.45
5. Step 5: Solve for x
   x = 397,027,677,837.45/710,924.82
6. Step 6: Final answer
   x = 558,466.47