Finding the Fourth Proportional to 2,142,441.54, 2,956,620.42 and 1,224,756.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,441.54 : 2,956,620.42 = 1,224,756.07 : x
2. Step 2: Convert to fraction form
   2,142,441.54/2,956,620.42 = 1,224,756.07/x
3. Step 3: Cross multiply
   2,142,441.54x = 2,956,620.42 × 1,224,756.07
4. Step 4: Simplify right side
   2,142,441.54x = 3,621,138,813,472.50
5. Step 5: Solve for x
   x = 3,621,138,813,472.50/2,142,441.54
6. Step 6: Final answer
   x = 1,690,192.59