Finding the Fourth Proportional to 1,667.36, 2,300.72 and 1,037.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.36 : 2,300.72 = 1,037.68 : x
2. Step 2: Convert to fraction form
   1,667.36/2,300.72 = 1,037.68/x
3. Step 3: Cross multiply
   1,667.36x = 2,300.72 × 1,037.68
4. Step 4: Simplify right side
   1,667.36x = 2,387,411.13
5. Step 5: Solve for x
   x = 2,387,411.13/1,667.36
6. Step 6: Final answer
   x = 1,431.85