Finding the Fourth Proportional to 713,016.69, 983,987.00 and 390,723.98

Step by Step Solution

1. Step 1: Write the proportion equation
   713,016.69 : 983,987.00 = 390,723.98 : x
2. Step 2: Convert to fraction form
   713,016.69/983,987.00 = 390,723.98/x
3. Step 3: Cross multiply
   713,016.69x = 983,987.00 × 390,723.98
4. Step 4: Simplify right side
   713,016.69x = 384,467,310,034.71
5. Step 5: Solve for x
   x = 384,467,310,034.71/713,016.69
6. Step 6: Final answer
   x = 539,212.22