Finding the Fourth Proportional to 1,378.03, 1,900.70 and 846.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,378.03 : 1,900.70 = 846.94 : x
2. Step 2: Convert to fraction form
   1,378.03/1,900.70 = 846.94/x
3. Step 3: Cross multiply
   1,378.03x = 1,900.70 × 846.94
4. Step 4: Simplify right side
   1,378.03x = 1,609,778.86
5. Step 5: Solve for x
   x = 1,609,778.86/1,378.03
6. Step 6: Final answer
   x = 1,168.17