Finding the Fourth Proportional to 1,667.87, 2,300.48 and 1,108.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.87 : 2,300.48 = 1,108.06 : x
2. Step 2: Convert to fraction form
   1,667.87/2,300.48 = 1,108.06/x
3. Step 3: Cross multiply
   1,667.87x = 2,300.48 × 1,108.06
4. Step 4: Simplify right side
   1,667.87x = 2,549,069.87
5. Step 5: Solve for x
   x = 2,549,069.87/1,667.87
6. Step 6: Final answer
   x = 1,528.34