Finding the Fourth Proportional to 1,345.88, 1,856.84 and 848.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.88 : 1,856.84 = 848.34 : x
2. Step 2: Convert to fraction form
   1,345.88/1,856.84 = 848.34/x
3. Step 3: Cross multiply
   1,345.88x = 1,856.84 × 848.34
4. Step 4: Simplify right side
   1,345.88x = 1,575,227.40
5. Step 5: Solve for x
   x = 1,575,227.40/1,345.88
6. Step 6: Final answer
   x = 1,170.41