Finding the Fourth Proportional to 2,619,487.47, 3,929,885.15 and 913,655.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,619,487.47 : 3,929,885.15 = 913,655.28 : x
2. Step 2: Convert to fraction form
   2,619,487.47/3,929,885.15 = 913,655.28/x
3. Step 3: Cross multiply
   2,619,487.47x = 3,929,885.15 × 913,655.28
4. Step 4: Simplify right side
   2,619,487.47x = 3,590,560,312,522.82
5. Step 5: Solve for x
   x = 3,590,560,312,522.82/2,619,487.47
6. Step 6: Final answer
   x = 1,370,711.01