Finding the Fourth Proportional to 1,378.41, 1,903.18 and 848.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378.41 : 1,903.18 = 848.00 : x
2. Step 2: Convert to fraction form
   1,378.41/1,903.18 = 848.00/x
3. Step 3: Cross multiply
   1,378.41x = 1,903.18 × 848.00
4. Step 4: Simplify right side
   1,378.41x = 1,613,887.12
5. Step 5: Solve for x
   x = 1,613,887.12/1,378.41
6. Step 6: Final answer
   x = 1,170.84