Finding the Fourth Proportional to 1,290,488.95, 1,935,991.82 and 722,677.53

Step by Step Solution

1. Step 1: Write the proportion equation
   1,290,488.95 : 1,935,991.82 = 722,677.53 : x
2. Step 2: Convert to fraction form
   1,290,488.95/1,935,991.82 = 722,677.53/x
3. Step 3: Cross multiply
   1,290,488.95x = 1,935,991.82 × 722,677.53
4. Step 4: Simplify right side
   1,290,488.95x = 1,399,097,786,577.80
5. Step 5: Solve for x
   x = 1,399,097,786,577.80/1,290,488.95
6. Step 6: Final answer
   x = 1,084,161.00