Finding the Fourth Proportional to 1,347.32, 1,858.85 and 875.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,347.32 : 1,858.85 = 875.79 : x
2. Step 2: Convert to fraction form
   1,347.32/1,858.85 = 875.79/x
3. Step 3: Cross multiply
   1,347.32x = 1,858.85 × 875.79
4. Step 4: Simplify right side
   1,347.32x = 1,627,957.86
5. Step 5: Solve for x
   x = 1,627,957.86/1,347.32
6. Step 6: Final answer
   x = 1,208.30