Finding the Fourth Proportional to 1,002.36, 1,495.80 and 910.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002.36 : 1,495.80 = 910.56 : x
2. Step 2: Convert to fraction form
   1,002.36/1,495.80 = 910.56/x
3. Step 3: Cross multiply
   1,002.36x = 1,495.80 × 910.56
4. Step 4: Simplify right side
   1,002.36x = 1,362,015.65
5. Step 5: Solve for x
   x = 1,362,015.65/1,002.36
6. Step 6: Final answer
   x = 1,358.81