Finding the Fourth Proportional to 1,515.15, 2,271.15 and 734.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515.15 : 2,271.15 = 734.00 : x
2. Step 2: Convert to fraction form
   1,515.15/2,271.15 = 734.00/x
3. Step 3: Cross multiply
   1,515.15x = 2,271.15 × 734.00
4. Step 4: Simplify right side
   1,515.15x = 1,667,012.74
5. Step 5: Solve for x
   x = 1,667,012.74/1,515.15
6. Step 6: Final answer
   x = 1,100.23