Finding the Fourth Proportional to 908,085.68, 1,361,193.81 and 402,884.58

Step by Step Solution

1. Step 1: Write the proportion equation
   908,085.68 : 1,361,193.81 = 402,884.58 : x
2. Step 2: Convert to fraction form
   908,085.68/1,361,193.81 = 402,884.58/x
3. Step 3: Cross multiply
   908,085.68x = 1,361,193.81 × 402,884.58
4. Step 4: Simplify right side
   908,085.68x = 548,404,002,300.34
5. Step 5: Solve for x
   x = 548,404,002,300.34/908,085.68
6. Step 6: Final answer
   x = 603,912.18