Finding the Fourth Proportional to 731,906.34, 1,010,136.83 and 421,748.59

Step by Step Solution

1. Step 1: Write the proportion equation
   731,906.34 : 1,010,136.83 = 421,748.59 : x
2. Step 2: Convert to fraction form
   731,906.34/1,010,136.83 = 421,748.59/x
3. Step 3: Cross multiply
   731,906.34x = 1,010,136.83 × 421,748.59
4. Step 4: Simplify right side
   731,906.34x = 426,023,782,288.60
5. Step 5: Solve for x
   x = 426,023,782,288.60/731,906.34
6. Step 6: Final answer
   x = 582,074.18