Finding the Fourth Proportional to 1,667.13, 2,301.60 and 1,108.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.13 : 2,301.60 = 1,108.37 : x
2. Step 2: Convert to fraction form
   1,667.13/2,301.60 = 1,108.37/x
3. Step 3: Cross multiply
   1,667.13x = 2,301.60 × 1,108.37
4. Step 4: Simplify right side
   1,667.13x = 2,551,012.88
5. Step 5: Solve for x
   x = 2,551,012.88/1,667.13
6. Step 6: Final answer
   x = 1,530.18