Finding the Fourth Proportional to 1,389,264, 2,084,166.72 and 590,536.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,389,264 : 2,084,166.72 = 590,536.32 : x
2. Step 2: Convert to fraction form
   1,389,264/2,084,166.72 = 590,536.32/x
3. Step 3: Cross multiply
   1,389,264x = 2,084,166.72 × 590,536.32
4. Step 4: Simplify right side
   1,389,264x = 1,230,776,145,095.27
5. Step 5: Solve for x
   x = 1,230,776,145,095.27/1,389,264
6. Step 6: Final answer
   x = 885,919.56