Finding the Fourth Proportional to 1,415.08, 1,950.78 and 994.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,415.08 : 1,950.78 = 994.12 : x
2. Step 2: Convert to fraction form
   1,415.08/1,950.78 = 994.12/x
3. Step 3: Cross multiply
   1,415.08x = 1,950.78 × 994.12
4. Step 4: Simplify right side
   1,415.08x = 1,939,309.41
5. Step 5: Solve for x
   x = 1,939,309.41/1,415.08
6. Step 6: Final answer
   x = 1,370.46