Finding the Fourth Proportional to 1,667.88, 2,494.67 and 972.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,667.88 : 2,494.67 = 972.81 : x
2. Step 2: Convert to fraction form
   1,667.88/2,494.67 = 972.81/x
3. Step 3: Cross multiply
   1,667.88x = 2,494.67 × 972.81
4. Step 4: Simplify right side
   1,667.88x = 2,426,835.06
5. Step 5: Solve for x
   x = 2,426,835.06/1,667.88
6. Step 6: Final answer
   x = 1,455.04