Finding the Fourth Proportional to 1,803.08, 2,488.06 and 1,017.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,803.08 : 2,488.06 = 1,017.12 : x
2. Step 2: Convert to fraction form
   1,803.08/2,488.06 = 1,017.12/x
3. Step 3: Cross multiply
   1,803.08x = 2,488.06 × 1,017.12
4. Step 4: Simplify right side
   1,803.08x = 2,530,655.59
5. Step 5: Solve for x
   x = 2,530,655.59/1,803.08
6. Step 6: Final answer
   x = 1,403.52