Finding the Fourth Proportional to 540,165.90, 745,443.98 and 298,464.05

Step by Step Solution

1. Step 1: Write the proportion equation
   540,165.90 : 745,443.98 = 298,464.05 : x
2. Step 2: Convert to fraction form
   540,165.90/745,443.98 = 298,464.05/x
3. Step 3: Cross multiply
   540,165.90x = 745,443.98 × 298,464.05
4. Step 4: Simplify right side
   540,165.90x = 222,488,224,099.38
5. Step 5: Solve for x
   x = 222,488,224,099.38/540,165.90
6. Step 6: Final answer
   x = 411,888.69