Finding the Fourth Proportional to 1,501.08, 2,072.52 and 1,004.28

Step by Step Solution

1. Step 1: Write the proportion equation
   1,501.08 : 2,072.52 = 1,004.28 : x
2. Step 2: Convert to fraction form
   1,501.08/2,072.52 = 1,004.28/x
3. Step 3: Cross multiply
   1,501.08x = 2,072.52 × 1,004.28
4. Step 4: Simplify right side
   1,501.08x = 2,081,390.39
5. Step 5: Solve for x
   x = 2,081,390.39/1,501.08
6. Step 6: Final answer
   x = 1,386.60