Finding the Fourth Proportional to 1,707.59, 2,561.18 and 1,005.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,707.59 : 2,561.18 = 1,005.22 : x
2. Step 2: Convert to fraction form
   1,707.59/2,561.18 = 1,005.22/x
3. Step 3: Cross multiply
   1,707.59x = 2,561.18 × 1,005.22
4. Step 4: Simplify right side
   1,707.59x = 2,574,536.55
5. Step 5: Solve for x
   x = 2,574,536.55/1,707.59
6. Step 6: Final answer
   x = 1,507.71