Finding the Fourth Proportional to 2,605,130.01, 3,908,073.60 and 808,156.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,605,130.01 : 3,908,073.60 = 808,156.71 : x
2. Step 2: Convert to fraction form
   2,605,130.01/3,908,073.60 = 808,156.71/x
3. Step 3: Cross multiply
   2,605,130.01x = 3,908,073.60 × 808,156.71
4. Step 4: Simplify right side
   2,605,130.01x = 3,158,335,903,013.86
5. Step 5: Solve for x
   x = 3,158,335,903,013.86/2,605,130.01
6. Step 6: Final answer
   x = 1,212,352.51