Finding the Fourth Proportional to 2,958,978.69, 4,083,158.03 and 1,812,903.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,958,978.69 : 4,083,158.03 = 1,812,903.21 : x
2. Step 2: Convert to fraction form
   2,958,978.69/4,083,158.03 = 1,812,903.21/x
3. Step 3: Cross multiply
   2,958,978.69x = 4,083,158.03 × 1,812,903.21
4. Step 4: Simplify right side
   2,958,978.69x = 7,402,370,290,459.76
5. Step 5: Solve for x
   x = 7,402,370,290,459.76/2,958,978.69
6. Step 6: Final answer
   x = 2,501,663.94