Finding the Fourth Proportional to 2,475.12, 3,415.86 and 1,427.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,475.12 : 3,415.86 = 1,427.52 : x
2. Step 2: Convert to fraction form
   2,475.12/3,415.86 = 1,427.52/x
3. Step 3: Cross multiply
   2,475.12x = 3,415.86 × 1,427.52
4. Step 4: Simplify right side
   2,475.12x = 4,876,208.47
5. Step 5: Solve for x
   x = 4,876,208.47/2,475.12
6. Step 6: Final answer
   x = 1,970.09