Finding the Fourth Proportional to 2,307.30, 3,457.86 and 845.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,307.30 : 3,457.86 = 845.10 : x
2. Step 2: Convert to fraction form
   2,307.30/3,457.86 = 845.10/x
3. Step 3: Cross multiply
   2,307.30x = 3,457.86 × 845.10
4. Step 4: Simplify right side
   2,307.30x = 2,922,237.49
5. Step 5: Solve for x
   x = 2,922,237.49/2,307.30
6. Step 6: Final answer
   x = 1,266.52