Finding the Fourth Proportional to 2,178,100.69, 3,005,338.49 and 1,272,507.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,178,100.69 : 3,005,338.49 = 1,272,507.73 : x
2. Step 2: Convert to fraction form
   2,178,100.69/3,005,338.49 = 1,272,507.73/x
3. Step 3: Cross multiply
   2,178,100.69x = 3,005,338.49 × 1,272,507.73
4. Step 4: Simplify right side
   2,178,100.69x = 3,824,316,453,428.99
5. Step 5: Solve for x
   x = 3,824,316,453,428.99/2,178,100.69
6. Step 6: Final answer
   x = 1,755,803.33