Finding the Fourth Proportional to 539,746.56, 744,861.89 and 298,044.50

Step by Step Solution

1. Step 1: Write the proportion equation
   539,746.56 : 744,861.89 = 298,044.50 : x
2. Step 2: Convert to fraction form
   539,746.56/744,861.89 = 298,044.50/x
3. Step 3: Cross multiply
   539,746.56x = 744,861.89 × 298,044.50
4. Step 4: Simplify right side
   539,746.56x = 222,001,986,594.91
5. Step 5: Solve for x
   x = 222,001,986,594.91/539,746.56
6. Step 6: Final answer
   x = 411,307.83