Finding the Fourth Proportional to 1,354.76, 1,870.42 and 957.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,354.76 : 1,870.42 = 957.46 : x
2. Step 2: Convert to fraction form
   1,354.76/1,870.42 = 957.46/x
3. Step 3: Cross multiply
   1,354.76x = 1,870.42 × 957.46
4. Step 4: Simplify right side
   1,354.76x = 1,790,852.33
5. Step 5: Solve for x
   x = 1,790,852.33/1,354.76
6. Step 6: Final answer
   x = 1,321.90