Finding the Fourth Proportional to 1,409.24, 1,941.72 and 1,015.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409.24 : 1,941.72 = 1,015.58 : x
2. Step 2: Convert to fraction form
   1,409.24/1,941.72 = 1,015.58/x
3. Step 3: Cross multiply
   1,409.24x = 1,941.72 × 1,015.58
4. Step 4: Simplify right side
   1,409.24x = 1,971,972.00
5. Step 5: Solve for x
   x = 1,971,972.00/1,409.24
6. Step 6: Final answer
   x = 1,399.32