Finding the Fourth Proportional to 1,369.56, 1,890.42 and 975.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,369.56 : 1,890.42 = 975.96 : x
2. Step 2: Convert to fraction form
   1,369.56/1,890.42 = 975.96/x
3. Step 3: Cross multiply
   1,369.56x = 1,890.42 × 975.96
4. Step 4: Simplify right side
   1,369.56x = 1,844,974.30
5. Step 5: Solve for x
   x = 1,844,974.30/1,369.56
6. Step 6: Final answer
   x = 1,347.13