Finding the Fourth Proportional to 1,710.72, 2,358.72 and 1,356.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,710.72 : 2,358.72 = 1,356.48 : x
2. Step 2: Convert to fraction form
   1,710.72/2,358.72 = 1,356.48/x
3. Step 3: Cross multiply
   1,710.72x = 2,358.72 × 1,356.48
4. Step 4: Simplify right side
   1,710.72x = 3,199,556.51
5. Step 5: Solve for x
   x = 3,199,556.51/1,710.72
6. Step 6: Final answer
   x = 1,870.30