Finding the Fourth Proportional to 2,656.06, 3,985.31 and 1,012.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,656.06 : 3,985.31 = 1,012.98 : x
2. Step 2: Convert to fraction form
   2,656.06/3,985.31 = 1,012.98/x
3. Step 3: Cross multiply
   2,656.06x = 3,985.31 × 1,012.98
4. Step 4: Simplify right side
   2,656.06x = 4,037,014.33
5. Step 5: Solve for x
   x = 4,037,014.33/2,656.06
6. Step 6: Final answer
   x = 1,519.93