Finding the Fourth Proportional to 899,404.42, 1,241,129.37 and 496,970.50

Step by Step Solution

1. Step 1: Write the proportion equation
   899,404.42 : 1,241,129.37 = 496,970.50 : x
2. Step 2: Convert to fraction form
   899,404.42/1,241,129.37 = 496,970.50/x
3. Step 3: Cross multiply
   899,404.42x = 1,241,129.37 × 496,970.50
4. Step 4: Simplify right side
   899,404.42x = 616,804,683,573.59
5. Step 5: Solve for x
   x = 616,804,683,573.59/899,404.42
6. Step 6: Final answer
   x = 685,792.36