Finding the Fourth Proportional to 1,725.01, 2,380.37 and 978.93

Step by Step Solution

1. Step 1: Write the proportion equation
   1,725.01 : 2,380.37 = 978.93 : x
2. Step 2: Convert to fraction form
   1,725.01/2,380.37 = 978.93/x
3. Step 3: Cross multiply
   1,725.01x = 2,380.37 × 978.93
4. Step 4: Simplify right side
   1,725.01x = 2,330,210.71
5. Step 5: Solve for x
   x = 2,330,210.71/1,725.01
6. Step 6: Final answer
   x = 1,350.84