Finding the Fourth Proportional to 1,667.06, 2,499.83 and 742.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.06 : 2,499.83 = 742.15 : x
2. Step 2: Convert to fraction form
   1,667.06/2,499.83 = 742.15/x
3. Step 3: Cross multiply
   1,667.06x = 2,499.83 × 742.15
4. Step 4: Simplify right side
   1,667.06x = 1,855,232.62
5. Step 5: Solve for x
   x = 1,855,232.62/1,667.06
6. Step 6: Final answer
   x = 1,112.88