Finding the Fourth Proportional to 1,803.72, 2,488.94 and 1,017.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,803.72 : 2,488.94 = 1,017.72 : x
2. Step 2: Convert to fraction form
   1,803.72/2,488.94 = 1,017.72/x
3. Step 3: Cross multiply
   1,803.72x = 2,488.94 × 1,017.72
4. Step 4: Simplify right side
   1,803.72x = 2,533,044.02
5. Step 5: Solve for x
   x = 2,533,044.02/1,803.72
6. Step 6: Final answer
   x = 1,404.34