Finding the Fourth Proportional to 1,415.86, 1,952.67 and 918.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,415.86 : 1,952.67 = 918.01 : x
2. Step 2: Convert to fraction form
   1,415.86/1,952.67 = 918.01/x
3. Step 3: Cross multiply
   1,415.86x = 1,952.67 × 918.01
4. Step 4: Simplify right side
   1,415.86x = 1,792,570.59
5. Step 5: Solve for x
   x = 1,792,570.59/1,415.86
6. Step 6: Final answer
   x = 1,266.06