Finding the Fourth Proportional to 2,100.09, 3,146.64 and 1,482.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.09 : 3,146.64 = 1,482.78 : x
2. Step 2: Convert to fraction form
   2,100.09/3,146.64 = 1,482.78/x
3. Step 3: Cross multiply
   2,100.09x = 3,146.64 × 1,482.78
4. Step 4: Simplify right side
   2,100.09x = 4,665,774.86
5. Step 5: Solve for x
   x = 4,665,774.86/2,100.09
6. Step 6: Final answer
   x = 2,221.70