Finding the Fourth Proportional to 2,129,144.77, 2,937,826.69 and 1,211,320.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129,144.77 : 2,937,826.69 = 1,211,320.34 : x
2. Step 2: Convert to fraction form
   2,129,144.77/2,937,826.69 = 1,211,320.34/x
3. Step 3: Cross multiply
   2,129,144.77x = 2,937,826.69 × 1,211,320.34
4. Step 4: Simplify right side
   2,129,144.77x = 3,558,649,224,991.88
5. Step 5: Solve for x
   x = 3,558,649,224,991.88/2,129,144.77
6. Step 6: Final answer
   x = 1,671,398.43