Finding the Fourth Proportional to 2,290,947.84, 3,161,462.40 and 1,272,317.76

Step by Step Solution

1. Step 1: Write the proportion equation
   2,290,947.84 : 3,161,462.40 = 1,272,317.76 : x
2. Step 2: Convert to fraction form
   2,290,947.84/3,161,462.40 = 1,272,317.76/x
3. Step 3: Cross multiply
   2,290,947.84x = 3,161,462.40 × 1,272,317.76
4. Step 4: Simplify right side
   2,290,947.84x = 4,022,384,759,092.22
5. Step 5: Solve for x
   x = 4,022,384,759,092.22/2,290,947.84
6. Step 6: Final answer
   x = 1,755,773.17