Finding the Fourth Proportional to 1,435.05, 1,979.11 and 1,036.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,435.05 : 1,979.11 = 1,036.61 : x
2. Step 2: Convert to fraction form
   1,435.05/1,979.11 = 1,036.61/x
3. Step 3: Cross multiply
   1,435.05x = 1,979.11 × 1,036.61
4. Step 4: Simplify right side
   1,435.05x = 2,051,552.73
5. Step 5: Solve for x
   x = 2,051,552.73/1,435.05
6. Step 6: Final answer
   x = 1,429.60