Finding the Fourth Proportional to 1,621.98, 2,424.35 and 1,412.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621.98 : 2,424.35 = 1,412.13 : x
2. Step 2: Convert to fraction form
   1,621.98/2,424.35 = 1,412.13/x
3. Step 3: Cross multiply
   1,621.98x = 2,424.35 × 1,412.13
4. Step 4: Simplify right side
   1,621.98x = 3,423,497.37
5. Step 5: Solve for x
   x = 3,423,497.37/1,621.98
6. Step 6: Final answer
   x = 2,110.69