Finding the Fourth Proportional to 651,830.10, 978,182.55 and 296,661.30

Step by Step Solution

1. Step 1: Write the proportion equation
   651,830.10 : 978,182.55 = 296,661.30 : x
2. Step 2: Convert to fraction form
   651,830.10/978,182.55 = 296,661.30/x
3. Step 3: Cross multiply
   651,830.10x = 978,182.55 × 296,661.30
4. Step 4: Simplify right side
   651,830.10x = 290,188,906,920.32
5. Step 5: Solve for x
   x = 290,188,906,920.32/651,830.10
6. Step 6: Final answer
   x = 445,191.02