Finding the Fourth Proportional to 1,430.01, 1,972.35 and 957.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430.01 : 1,972.35 = 957.75 : x
2. Step 2: Convert to fraction form
   1,430.01/1,972.35 = 957.75/x
3. Step 3: Cross multiply
   1,430.01x = 1,972.35 × 957.75
4. Step 4: Simplify right side
   1,430.01x = 1,889,018.21
5. Step 5: Solve for x
   x = 1,889,018.21/1,430.01
6. Step 6: Final answer
   x = 1,320.98