Finding the Fourth Proportional to 1,111.70, 1,667.75 and 750.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.70 : 1,667.75 = 750.03 : x
2. Step 2: Convert to fraction form
   1,111.70/1,667.75 = 750.03/x
3. Step 3: Cross multiply
   1,111.70x = 1,667.75 × 750.03
4. Step 4: Simplify right side
   1,111.70x = 1,250,858.78
5. Step 5: Solve for x
   x = 1,250,858.78/1,111.70
6. Step 6: Final answer
   x = 1,125.18