Finding the Fourth Proportional to 1,803.96, 2,488.89 and 1,017.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,803.96 : 2,488.89 = 1,017.86 : x
2. Step 2: Convert to fraction form
   1,803.96/2,488.89 = 1,017.86/x
3. Step 3: Cross multiply
   1,803.96x = 2,488.89 × 1,017.86
4. Step 4: Simplify right side
   1,803.96x = 2,533,329.13
5. Step 5: Solve for x
   x = 2,533,329.13/1,803.96
6. Step 6: Final answer
   x = 1,404.32