Finding the Fourth Proportional to 1,410.25, 1,945.49 and 913.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,410.25 : 1,945.49 = 913.06 : x
2. Step 2: Convert to fraction form
   1,410.25/1,945.49 = 913.06/x
3. Step 3: Cross multiply
   1,410.25x = 1,945.49 × 913.06
4. Step 4: Simplify right side
   1,410.25x = 1,776,343.73
5. Step 5: Solve for x
   x = 1,776,343.73/1,410.25
6. Step 6: Final answer
   x = 1,259.59