Finding the Fourth Proportional to 2,111,400.84, 3,166,614.18 and 1,258,711.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111,400.84 : 3,166,614.18 = 1,258,711.68 : x
2. Step 2: Convert to fraction form
   2,111,400.84/3,166,614.18 = 1,258,711.68/x
3. Step 3: Cross multiply
   2,111,400.84x = 3,166,614.18 × 1,258,711.68
4. Step 4: Simplify right side
   2,111,400.84x = 3,985,854,254,419.62
5. Step 5: Solve for x
   x = 3,985,854,254,419.62/2,111,400.84
6. Step 6: Final answer
   x = 1,887,777.15