Finding the Fourth Proportional to 1,263,002.28, 1,740,688.56 and 956,346

Step by Step Solution

1. Step 1: Write the proportion equation
   1,263,002.28 : 1,740,688.56 = 956,346 : x
2. Step 2: Convert to fraction form
   1,263,002.28/1,740,688.56 = 956,346/x
3. Step 3: Cross multiply
   1,263,002.28x = 1,740,688.56 × 956,346
4. Step 4: Simplify right side
   1,263,002.28x = 1,664,700,541,601.76
5. Step 5: Solve for x
   x = 1,664,700,541,601.76/1,263,002.28
6. Step 6: Final answer
   x = 1,318,050.31