Finding the Fourth Proportional to 1,303.72, 1,800.38 and 1,116.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,303.72 : 1,800.38 = 1,116.09 : x
2. Step 2: Convert to fraction form
   1,303.72/1,800.38 = 1,116.09/x
3. Step 3: Cross multiply
   1,303.72x = 1,800.38 × 1,116.09
4. Step 4: Simplify right side
   1,303.72x = 2,009,388.90
5. Step 5: Solve for x
   x = 2,009,388.90/1,303.72
6. Step 6: Final answer
   x = 1,541.28