Finding the Fourth Proportional to 1,379.52, 1,904.04 and 848.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,379.52 : 1,904.04 = 848.86 : x
2. Step 2: Convert to fraction form
   1,379.52/1,904.04 = 848.86/x
3. Step 3: Cross multiply
   1,379.52x = 1,904.04 × 848.86
4. Step 4: Simplify right side
   1,379.52x = 1,616,249.63
5. Step 5: Solve for x
   x = 1,616,249.63/1,379.52
6. Step 6: Final answer
   x = 1,171.60