Finding the Fourth Proportional to 2,239,667.37, 3,090,607.79 and 1,272,663.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,239,667.37 : 3,090,607.79 = 1,272,663.45 : x
2. Step 2: Convert to fraction form
   2,239,667.37/3,090,607.79 = 1,272,663.45/x
3. Step 3: Cross multiply
   2,239,667.37x = 3,090,607.79 × 1,272,663.45
4. Step 4: Simplify right side
   2,239,667.37x = 3,933,303,572,618.28
5. Step 5: Solve for x
   x = 3,933,303,572,618.28/2,239,667.37
6. Step 6: Final answer
   x = 1,756,199.88