Finding the Fourth Proportional to 532,443.78, 734,802.30 and 290,748.83

Step by Step Solution

1. Step 1: Write the proportion equation
   532,443.78 : 734,802.30 = 290,748.83 : x
2. Step 2: Convert to fraction form
   532,443.78/734,802.30 = 290,748.83/x
3. Step 3: Cross multiply
   532,443.78x = 734,802.30 × 290,748.83
4. Step 4: Simplify right side
   532,443.78x = 213,642,905,332.30
5. Step 5: Solve for x
   x = 213,642,905,332.30/532,443.78
6. Step 6: Final answer
   x = 401,249.70