Finding the Fourth Proportional to 1,419.46, 2,117.78 and 1,263.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,419.46 : 2,117.78 = 1,263.52 : x
2. Step 2: Convert to fraction form
   1,419.46/2,117.78 = 1,263.52/x
3. Step 3: Cross multiply
   1,419.46x = 2,117.78 × 1,263.52
4. Step 4: Simplify right side
   1,419.46x = 2,675,857.39
5. Step 5: Solve for x
   x = 2,675,857.39/1,419.46
6. Step 6: Final answer
   x = 1,885.12