Finding the Fourth Proportional to 2,142,276.85, 2,956,341.81 and 1,224,525.61

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,276.85 : 2,956,341.81 = 1,224,525.61 : x
2. Step 2: Convert to fraction form
   2,142,276.85/2,956,341.81 = 1,224,525.61/x
3. Step 3: Cross multiply
   2,142,276.85x = 2,956,341.81 × 1,224,525.61
4. Step 4: Simplify right side
   2,142,276.85x = 3,620,116,258,258.75
5. Step 5: Solve for x
   x = 3,620,116,258,258.75/2,142,276.85
6. Step 6: Final answer
   x = 1,689,845.20