Finding the Fourth Proportional to 1,461,111.20, 2,190,111.60 and 562,205.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,461,111.20 : 2,190,111.60 = 562,205.60 : x
2. Step 2: Convert to fraction form
   1,461,111.20/2,190,111.60 = 562,205.60/x
3. Step 3: Cross multiply
   1,461,111.20x = 2,190,111.60 × 562,205.60
4. Step 4: Simplify right side
   1,461,111.20x = 1,231,293,006,144.96
5. Step 5: Solve for x
   x = 1,231,293,006,144.96/1,461,111.20
6. Step 6: Final answer
   x = 842,709.99