Finding the Fourth Proportional to 1,410.29, 1,945.55 and 913.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.29 : 1,945.55 = 913.09 : x
2. Step 2: Convert to fraction form
   1,410.29/1,945.55 = 913.09/x
3. Step 3: Cross multiply
   1,410.29x = 1,945.55 × 913.09
4. Step 4: Simplify right side
   1,410.29x = 1,776,452.82
5. Step 5: Solve for x
   x = 1,776,452.82/1,410.29
6. Step 6: Final answer
   x = 1,259.64