Finding the Fourth Proportional to 2,146.32, 3,219.60 and 975.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.32 : 3,219.60 = 975.12 : x
2. Step 2: Convert to fraction form
   2,146.32/3,219.60 = 975.12/x
3. Step 3: Cross multiply
   2,146.32x = 3,219.60 × 975.12
4. Step 4: Simplify right side
   2,146.32x = 3,139,496.35
5. Step 5: Solve for x
   x = 3,139,496.35/2,146.32
6. Step 6: Final answer
   x = 1,462.73