Finding the Fourth Proportional to 2,276,017.68, 3,140,811.45 and 1,243,561.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,276,017.68 : 3,140,811.45 = 1,243,561.21 : x
2. Step 2: Convert to fraction form
   2,276,017.68/3,140,811.45 = 1,243,561.21/x
3. Step 3: Cross multiply
   2,276,017.68x = 3,140,811.45 × 1,243,561.21
4. Step 4: Simplify right side
   2,276,017.68x = 3,905,791,279,291.83
5. Step 5: Solve for x
   x = 3,905,791,279,291.83/2,276,017.68
6. Step 6: Final answer
   x = 1,716,063.68