Finding the Fourth Proportional to 1,758.83, 2,427.31 and 972.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,758.83 : 2,427.31 = 972.86 : x
2. Step 2: Convert to fraction form
   1,758.83/2,427.31 = 972.86/x
3. Step 3: Cross multiply
   1,758.83x = 2,427.31 × 972.86
4. Step 4: Simplify right side
   1,758.83x = 2,361,432.81
5. Step 5: Solve for x
   x = 2,361,432.81/1,758.83
6. Step 6: Final answer
   x = 1,342.62