Finding the Fourth Proportional to 2,290,755.19, 3,161,155.59 and 1,272,225.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290,755.19 : 3,161,155.59 = 1,272,225.55 : x
2. Step 2: Convert to fraction form
   2,290,755.19/3,161,155.59 = 1,272,225.55/x
3. Step 3: Cross multiply
   2,290,755.19x = 3,161,155.59 × 1,272,225.55
4. Step 4: Simplify right side
   2,290,755.19x = 4,021,702,909,123.32
5. Step 5: Solve for x
   x = 4,021,702,909,123.32/2,290,755.19
6. Step 6: Final answer
   x = 1,755,623.18