Finding the Fourth Proportional to 1,409.96, 1,945.27 and 913.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.96 : 1,945.27 = 913.23 : x
2. Step 2: Convert to fraction form
   1,409.96/1,945.27 = 913.23/x
3. Step 3: Cross multiply
   1,409.96x = 1,945.27 × 913.23
4. Step 4: Simplify right side
   1,409.96x = 1,776,478.92
5. Step 5: Solve for x
   x = 1,776,478.92/1,409.96
6. Step 6: Final answer
   x = 1,259.95