Finding the Fourth Proportional to 532,596.56, 734,950.72 and 290,830

Step by Step Solution

1. Step 1: Write the proportion equation
   532,596.56 : 734,950.72 = 290,830 : x
2. Step 2: Convert to fraction form
   532,596.56/734,950.72 = 290,830/x
3. Step 3: Cross multiply
   532,596.56x = 734,950.72 × 290,830
4. Step 4: Simplify right side
   532,596.56x = 213,745,717,897.60
5. Step 5: Solve for x
   x = 213,745,717,897.60/532,596.56
6. Step 6: Final answer
   x = 401,327.64