Finding the Fourth Proportional to 1,782.42, 2,460.72 and 1,309.92

Step by Step Solution

1. Step 1: Write the proportion equation
   1,782.42 : 2,460.72 = 1,309.92 : x
2. Step 2: Convert to fraction form
   1,782.42/2,460.72 = 1,309.92/x
3. Step 3: Cross multiply
   1,782.42x = 2,460.72 × 1,309.92
4. Step 4: Simplify right side
   1,782.42x = 3,223,346.34
5. Step 5: Solve for x
   x = 3,223,346.34/1,782.42
6. Step 6: Final answer
   x = 1,808.41