Finding the Fourth Proportional to 6,419.86, 9,630.15 and 1,802.50

Step by Step Solution

1. Step 1: Write the proportion equation
   6,419.86 : 9,630.15 = 1,802.50 : x
2. Step 2: Convert to fraction form
   6,419.86/9,630.15 = 1,802.50/x
3. Step 3: Cross multiply
   6,419.86x = 9,630.15 × 1,802.50
4. Step 4: Simplify right side
   6,419.86x = 17,358,345.38
5. Step 5: Solve for x
   x = 17,358,345.38/6,419.86
6. Step 6: Final answer
   x = 2,703.85