Finding the Fourth Proportional to 1,345.34, 2,015.07 and 954.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.34 : 2,015.07 = 954.15 : x
2. Step 2: Convert to fraction form
   1,345.34/2,015.07 = 954.15/x
3. Step 3: Cross multiply
   1,345.34x = 2,015.07 × 954.15
4. Step 4: Simplify right side
   1,345.34x = 1,922,679.04
5. Step 5: Solve for x
   x = 1,922,679.04/1,345.34
6. Step 6: Final answer
   x = 1,429.15