Finding the Fourth Proportional to 2,143,606.98, 2,958,100.99 and 1,213,294.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,143,606.98 : 2,958,100.99 = 1,213,294.77 : x
2. Step 2: Convert to fraction form
   2,143,606.98/2,958,100.99 = 1,213,294.77/x
3. Step 3: Cross multiply
   2,143,606.98x = 2,958,100.99 × 1,213,294.77
4. Step 4: Simplify right side
   2,143,606.98x = 3,589,048,460,298.82
5. Step 5: Solve for x
   x = 3,589,048,460,298.82/2,143,606.98
6. Step 6: Final answer
   x = 1,674,303.40