Finding the Fourth Proportional to 1,377.58, 1,901.09 and 846.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.58 : 1,901.09 = 846.76 : x
2. Step 2: Convert to fraction form
   1,377.58/1,901.09 = 846.76/x
3. Step 3: Cross multiply
   1,377.58x = 1,901.09 × 846.76
4. Step 4: Simplify right side
   1,377.58x = 1,609,766.97
5. Step 5: Solve for x
   x = 1,609,766.97/1,377.58
6. Step 6: Final answer
   x = 1,168.55