Finding the Fourth Proportional to 1,427,470.50, 2,140,527.72 and 828,615.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,427,470.50 : 2,140,527.72 = 828,615.18 : x
2. Step 2: Convert to fraction form
   1,427,470.50/2,140,527.72 = 828,615.18/x
3. Step 3: Cross multiply
   1,427,470.50x = 2,140,527.72 × 828,615.18
4. Step 4: Simplify right side
   1,427,470.50x = 1,773,673,762,002.79
5. Step 5: Solve for x
   x = 1,773,673,762,002.79/1,427,470.50
6. Step 6: Final answer
   x = 1,242,529.19