Finding the Fourth Proportional to 1,665.58, 2,498.14 and 972.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,665.58 : 2,498.14 = 972.58 : x
2. Step 2: Convert to fraction form
   1,665.58/2,498.14 = 972.58/x
3. Step 3: Cross multiply
   1,665.58x = 2,498.14 × 972.58
4. Step 4: Simplify right side
   1,665.58x = 2,429,641.00
5. Step 5: Solve for x
   x = 2,429,641.00/1,665.58
6. Step 6: Final answer
   x = 1,458.74