Finding the Fourth Proportional to 1,578.98, 2,180.01 and 1,412.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,578.98 : 2,180.01 = 1,412.91 : x
2. Step 2: Convert to fraction form
   1,578.98/2,180.01 = 1,412.91/x
3. Step 3: Cross multiply
   1,578.98x = 2,180.01 × 1,412.91
4. Step 4: Simplify right side
   1,578.98x = 3,080,139.96
5. Step 5: Solve for x
   x = 3,080,139.96/1,578.98
6. Step 6: Final answer
   x = 1,950.71