Finding the Fourth Proportional to 2,519,196.62, 3,778,405.40 and 921,386.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,519,196.62 : 3,778,405.40 = 921,386.06 : x
2. Step 2: Convert to fraction form
   2,519,196.62/3,778,405.40 = 921,386.06/x
3. Step 3: Cross multiply
   2,519,196.62x = 3,778,405.40 × 921,386.06
4. Step 4: Simplify right side
   2,519,196.62x = 3,481,370,064,588.72
5. Step 5: Solve for x
   x = 3,481,370,064,588.72/2,519,196.62
6. Step 6: Final answer
   x = 1,381,936.62