Finding the Fourth Proportional to 1,667.36, 2,500.21 and 974.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.36 : 2,500.21 = 974.19 : x
2. Step 2: Convert to fraction form
   1,667.36/2,500.21 = 974.19/x
3. Step 3: Cross multiply
   1,667.36x = 2,500.21 × 974.19
4. Step 4: Simplify right side
   1,667.36x = 2,435,679.58
5. Step 5: Solve for x
   x = 2,435,679.58/1,667.36
6. Step 6: Final answer
   x = 1,460.80