Finding the Fourth Proportional to 1,375.49, 1,898.37 and 955.61

Step by Step Solution

1. Step 1: Write the proportion equation
   1,375.49 : 1,898.37 = 955.61 : x
2. Step 2: Convert to fraction form
   1,375.49/1,898.37 = 955.61/x
3. Step 3: Cross multiply
   1,375.49x = 1,898.37 × 955.61
4. Step 4: Simplify right side
   1,375.49x = 1,814,106.10
5. Step 5: Solve for x
   x = 1,814,106.10/1,375.49
6. Step 6: Final answer
   x = 1,318.88