Finding the Fourth Proportional to 1,095.86, 1,642.50 and 609.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,095.86 : 1,642.50 = 609.32 : x
2. Step 2: Convert to fraction form
   1,095.86/1,642.50 = 609.32/x
3. Step 3: Cross multiply
   1,095.86x = 1,642.50 × 609.32
4. Step 4: Simplify right side
   1,095.86x = 1,000,808.10
5. Step 5: Solve for x
   x = 1,000,808.10/1,095.86
6. Step 6: Final answer
   x = 913.26