Finding the Fourth Proportional to 1,741.29, 2,606.81 and 917.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,741.29 : 2,606.81 = 917.79 : x
2. Step 2: Convert to fraction form
   1,741.29/2,606.81 = 917.79/x
3. Step 3: Cross multiply
   1,741.29x = 2,606.81 × 917.79
4. Step 4: Simplify right side
   1,741.29x = 2,392,499.56
5. Step 5: Solve for x
   x = 2,392,499.56/1,741.29
6. Step 6: Final answer
   x = 1,373.98