Finding the Fourth Proportional to 2,111,242.32, 3,166,377.78 and 1,258,554.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111,242.32 : 3,166,377.78 = 1,258,554.71 : x
2. Step 2: Convert to fraction form
   2,111,242.32/3,166,377.78 = 1,258,554.71/x
3. Step 3: Cross multiply
   2,111,242.32x = 3,166,377.78 × 1,258,554.71
4. Step 4: Simplify right side
   2,111,242.32x = 3,985,059,681,293.87
5. Step 5: Solve for x
   x = 3,985,059,681,293.87/2,111,242.32
6. Step 6: Final answer
   x = 1,887,542.54