Finding the Fourth Proportional to 828,404.35, 1,240,856.93 and 828,404.35

Step by Step Solution

1. Step 1: Write the proportion equation
   828,404.35 : 1,240,856.93 = 828,404.35 : x
2. Step 2: Convert to fraction form
   828,404.35/1,240,856.93 = 828,404.35/x
3. Step 3: Cross multiply
   828,404.35x = 1,240,856.93 × 828,404.35
4. Step 4: Simplify right side
   828,404.35x = 1,027,931,274,397.62
5. Step 5: Solve for x
   x = 1,027,931,274,397.62/828,404.35
6. Step 6: Final answer
   x = 1,240,856.93