Finding the Fourth Proportional to 1,435,410.06, 1,980,649.71 and 815,118.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435,410.06 : 1,980,649.71 = 815,118.54 : x
2. Step 2: Convert to fraction form
   1,435,410.06/1,980,649.71 = 815,118.54/x
3. Step 3: Cross multiply
   1,435,410.06x = 1,980,649.71 × 815,118.54
4. Step 4: Simplify right side
   1,435,410.06x = 1,614,464,299,866.62
5. Step 5: Solve for x
   x = 1,614,464,299,866.62/1,435,410.06
6. Step 6: Final answer
   x = 1,124,740.83