Finding the Fourth Proportional to 1,415.27, 1,953.47 and 995.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,415.27 : 1,953.47 = 995.72 : x
2. Step 2: Convert to fraction form
   1,415.27/1,953.47 = 995.72/x
3. Step 3: Cross multiply
   1,415.27x = 1,953.47 × 995.72
4. Step 4: Simplify right side
   1,415.27x = 1,945,094.40
5. Step 5: Solve for x
   x = 1,945,094.40/1,415.27
6. Step 6: Final answer
   x = 1,374.37