Finding the Fourth Proportional to 1,664.51, 2,498.45 and 972.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,664.51 : 2,498.45 = 972.50 : x
2. Step 2: Convert to fraction form
   1,664.51/2,498.45 = 972.50/x
3. Step 3: Cross multiply
   1,664.51x = 2,498.45 × 972.50
4. Step 4: Simplify right side
   1,664.51x = 2,429,725.27
5. Step 5: Solve for x
   x = 2,429,725.27/1,664.51
6. Step 6: Final answer
   x = 1,459.73