Finding the Fourth Proportional to 1,377.50, 1,901.14 and 957.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,377.50 : 1,901.14 = 957.62 : x
2. Step 2: Convert to fraction form
   1,377.50/1,901.14 = 957.62/x
3. Step 3: Cross multiply
   1,377.50x = 1,901.14 × 957.62
4. Step 4: Simplify right side
   1,377.50x = 1,820,569.69
5. Step 5: Solve for x
   x = 1,820,569.69/1,377.50
6. Step 6: Final answer
   x = 1,321.65