Finding the Fourth Proportional to 1,348.15, 1,859.34 and 849.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,348.15 : 1,859.34 = 849.91 : x
2. Step 2: Convert to fraction form
   1,348.15/1,859.34 = 849.91/x
3. Step 3: Cross multiply
   1,348.15x = 1,859.34 × 849.91
4. Step 4: Simplify right side
   1,348.15x = 1,580,271.66
5. Step 5: Solve for x
   x = 1,580,271.66/1,348.15
6. Step 6: Final answer
   x = 1,172.18