Finding the Fourth Proportional to 2,948,288.63, 4,422,457.71 and 818,538.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,948,288.63 : 4,422,457.71 = 818,538.83 : x
2. Step 2: Convert to fraction form
   2,948,288.63/4,422,457.71 = 818,538.83/x
3. Step 3: Cross multiply
   2,948,288.63x = 4,422,457.71 × 818,538.83
4. Step 4: Simplify right side
   2,948,288.63x = 3,619,953,359,667.88
5. Step 5: Solve for x
   x = 3,619,953,359,667.88/2,948,288.63
6. Step 6: Final answer
   x = 1,227,815.12