Finding the Fourth Proportional to 1,345.50, 1,854.87 and 953.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.50 : 1,854.87 = 953.42 : x
2. Step 2: Convert to fraction form
   1,345.50/1,854.87 = 953.42/x
3. Step 3: Cross multiply
   1,345.50x = 1,854.87 × 953.42
4. Step 4: Simplify right side
   1,345.50x = 1,768,470.16
5. Step 5: Solve for x
   x = 1,768,470.16/1,345.50
6. Step 6: Final answer
   x = 1,314.36