Finding the Fourth Proportional to 1,444.42, 1,993.35 and 913.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,444.42 : 1,993.35 = 913.11 : x
2. Step 2: Convert to fraction form
   1,444.42/1,993.35 = 913.11/x
3. Step 3: Cross multiply
   1,444.42x = 1,993.35 × 913.11
4. Step 4: Simplify right side
   1,444.42x = 1,820,147.82
5. Step 5: Solve for x
   x = 1,820,147.82/1,444.42
6. Step 6: Final answer
   x = 1,260.12