Finding the Fourth Proportional to 1,501.68, 2,072.39 and 1,004.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.68 : 2,072.39 = 1,004.52 : x
2. Step 2: Convert to fraction form
   1,501.68/2,072.39 = 1,004.52/x
3. Step 3: Cross multiply
   1,501.68x = 2,072.39 × 1,004.52
4. Step 4: Simplify right side
   1,501.68x = 2,081,752.18
5. Step 5: Solve for x
   x = 2,081,752.18/1,501.68
6. Step 6: Final answer
   x = 1,386.28