Finding the Fourth Proportional to 1,686,131.79, 2,529,191.61 and 606,642.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,686,131.79 : 2,529,191.61 = 606,642.09 : x
2. Step 2: Convert to fraction form
   1,686,131.79/2,529,191.61 = 606,642.09/x
3. Step 3: Cross multiply
   1,686,131.79x = 2,529,191.61 × 606,642.09
4. Step 4: Simplify right side
   1,686,131.79x = 1,534,314,084,300.86
5. Step 5: Solve for x
   x = 1,534,314,084,300.86/1,686,131.79
6. Step 6: Final answer
   x = 909,960.95