Finding the Fourth Proportional to 1,665.92, 2,298.56 and 1,036.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.92 : 2,298.56 = 1,036.16 : x
2. Step 2: Convert to fraction form
   1,665.92/2,298.56 = 1,036.16/x
3. Step 3: Cross multiply
   1,665.92x = 2,298.56 × 1,036.16
4. Step 4: Simplify right side
   1,665.92x = 2,381,675.93
5. Step 5: Solve for x
   x = 2,381,675.93/1,665.92
6. Step 6: Final answer
   x = 1,429.65