Finding the Fourth Proportional to 1,611,280.35, 2,223,522.54 and 886,128.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,611,280.35 : 2,223,522.54 = 886,128.12 : x
2. Step 2: Convert to fraction form
   1,611,280.35/2,223,522.54 = 886,128.12/x
3. Step 3: Cross multiply
   1,611,280.35x = 2,223,522.54 × 886,128.12
4. Step 4: Simplify right side
   1,611,280.35x = 1,970,325,848,147.82
5. Step 5: Solve for x
   x = 1,970,325,848,147.82/1,611,280.35
6. Step 6: Final answer
   x = 1,222,832.42