Finding the Fourth Proportional to 2,116,641.44, 2,921,388.72 and 1,257,678.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,116,641.44 : 2,921,388.72 = 1,257,678.56 : x
2. Step 2: Convert to fraction form
   2,116,641.44/2,921,388.72 = 1,257,678.56/x
3. Step 3: Cross multiply
   2,116,641.44x = 2,921,388.72 × 1,257,678.56
4. Step 4: Simplify right side
   2,116,641.44x = 3,674,167,958,569.84
5. Step 5: Solve for x
   x = 3,674,167,958,569.84/2,116,641.44
6. Step 6: Final answer
   x = 1,735,848.07