Finding the Fourth Proportional to 1,112.06, 1,667.42 and 527.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,112.06 : 1,667.42 = 527.18 : x
2. Step 2: Convert to fraction form
   1,112.06/1,667.42 = 527.18/x
3. Step 3: Cross multiply
   1,112.06x = 1,667.42 × 527.18
4. Step 4: Simplify right side
   1,112.06x = 879,030.48
5. Step 5: Solve for x
   x = 879,030.48/1,112.06
6. Step 6: Final answer
   x = 790.45