Finding the Fourth Proportional to 2,011.60, 3,013.88 and 970.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,011.60 : 3,013.88 = 970.16 : x
2. Step 2: Convert to fraction form
   2,011.60/3,013.88 = 970.16/x
3. Step 3: Cross multiply
   2,011.60x = 3,013.88 × 970.16
4. Step 4: Simplify right side
   2,011.60x = 2,923,945.82
5. Step 5: Solve for x
   x = 2,923,945.82/2,011.60
6. Step 6: Final answer
   x = 1,453.54