Finding the Fourth Proportional to 1,303.98, 1,945.86 and 1,165.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,303.98 : 1,945.86 = 1,165.50 : x
2. Step 2: Convert to fraction form
   1,303.98/1,945.86 = 1,165.50/x
3. Step 3: Cross multiply
   1,303.98x = 1,945.86 × 1,165.50
4. Step 4: Simplify right side
   1,303.98x = 2,267,899.83
5. Step 5: Solve for x
   x = 2,267,899.83/1,303.98
6. Step 6: Final answer
   x = 1,739.21