Finding the Fourth Proportional to 2,228,667.30, 3,075,573.15 and 1,210,072.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,228,667.30 : 3,075,573.15 = 1,210,072.05 : x
2. Step 2: Convert to fraction form
   2,228,667.30/3,075,573.15 = 1,210,072.05/x
3. Step 3: Cross multiply
   2,228,667.30x = 3,075,573.15 × 1,210,072.05
4. Step 4: Simplify right side
   2,228,667.30x = 3,721,665,106,545.46
5. Step 5: Solve for x
   x = 3,721,665,106,545.46/2,228,667.30
6. Step 6: Final answer
   x = 1,669,906.09