Finding the Fourth Proportional to 6,953.83, 10,430.61 and 1,688.76

Step by Step Solution

1. Step 1: Write the proportion equation
   6,953.83 : 10,430.61 = 1,688.76 : x
2. Step 2: Convert to fraction form
   6,953.83/10,430.61 = 1,688.76/x
3. Step 3: Cross multiply
   6,953.83x = 10,430.61 × 1,688.76
4. Step 4: Simplify right side
   6,953.83x = 17,614,796.94
5. Step 5: Solve for x
   x = 17,614,796.94/6,953.83
6. Step 6: Final answer
   x = 2,533.11