Finding the Fourth Proportional to 1,409,061.64, 1,944,516.06 and 828,128.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,409,061.64 : 1,944,516.06 = 828,128.76 : x
2. Step 2: Convert to fraction form
   1,409,061.64/1,944,516.06 = 828,128.76/x
3. Step 3: Cross multiply
   1,409,061.64x = 1,944,516.06 × 828,128.76
4. Step 4: Simplify right side
   1,409,061.64x = 1,610,309,673,567.89
5. Step 5: Solve for x
   x = 1,610,309,673,567.89/1,409,061.64
6. Step 6: Final answer
   x = 1,142,824.15