Finding the Fourth Proportional to 1,478.04, 2,039.04 and 1,035.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,478.04 : 2,039.04 = 1,035.78 : x
2. Step 2: Convert to fraction form
   1,478.04/2,039.04 = 1,035.78/x
3. Step 3: Cross multiply
   1,478.04x = 2,039.04 × 1,035.78
4. Step 4: Simplify right side
   1,478.04x = 2,111,996.85
5. Step 5: Solve for x
   x = 2,111,996.85/1,478.04
6. Step 6: Final answer
   x = 1,428.92