Finding the Fourth Proportional to 1,665,501.20, 2,499,418.20 and 1,067,915.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665,501.20 : 2,499,418.20 = 1,067,915.60 : x
2. Step 2: Convert to fraction form
   1,665,501.20/2,499,418.20 = 1,067,915.60/x
3. Step 3: Cross multiply
   1,665,501.20x = 2,499,418.20 × 1,067,915.60
4. Step 4: Simplify right side
   1,665,501.20x = 2,669,167,686,703.92
5. Step 5: Solve for x
   x = 2,669,167,686,703.92/1,665,501.20
6. Step 6: Final answer
   x = 1,602,621.29