Finding the Fourth Proportional to 1,429,164.64, 2,140,944.30 and 828,864.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,429,164.64 : 2,140,944.30 = 828,864.72 : x
2. Step 2: Convert to fraction form
   1,429,164.64/2,140,944.30 = 828,864.72/x
3. Step 3: Cross multiply
   1,429,164.64x = 2,140,944.30 × 828,864.72
4. Step 4: Simplify right side
   1,429,164.64x = 1,774,553,197,755.10
5. Step 5: Solve for x
   x = 1,774,553,197,755.10/1,429,164.64
6. Step 6: Final answer
   x = 1,241,671.64