Finding the Fourth Proportional to 1,039,598.72, 1,434,658.20 and 609,886.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,039,598.72 : 1,434,658.20 = 609,886.16 : x
2. Step 2: Convert to fraction form
   1,039,598.72/1,434,658.20 = 609,886.16/x
3. Step 3: Cross multiply
   1,039,598.72x = 1,434,658.20 × 609,886.16
4. Step 4: Simplify right side
   1,039,598.72x = 874,978,180,510.51
5. Step 5: Solve for x
   x = 874,978,180,510.51/1,039,598.72
6. Step 6: Final answer
   x = 841,649.92