Finding the Fourth Proportional to 2,139,018.95, 2,951,990.98 and 1,208,403.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,139,018.95 : 2,951,990.98 = 1,208,403.93 : x
2. Step 2: Convert to fraction form
   2,139,018.95/2,951,990.98 = 1,208,403.93/x
3. Step 3: Cross multiply
   2,139,018.95x = 2,951,990.98 × 1,208,403.93
4. Step 4: Simplify right side
   2,139,018.95x = 3,567,197,501,556.55
5. Step 5: Solve for x
   x = 3,567,197,501,556.55/2,139,018.95
6. Step 6: Final answer
   x = 1,667,679.24