Finding the Fourth Proportional to 1,434,839.58, 1,980,168.50 and 790,259.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,434,839.58 : 1,980,168.50 = 790,259.63 : x
2. Step 2: Convert to fraction form
   1,434,839.58/1,980,168.50 = 790,259.63/x
3. Step 3: Cross multiply
   1,434,839.58x = 1,980,168.50 × 790,259.63
4. Step 4: Simplify right side
   1,434,839.58x = 1,564,847,218,222.46
5. Step 5: Solve for x
   x = 1,564,847,218,222.46/1,434,839.58
6. Step 6: Final answer
   x = 1,090,607.79