Finding the Fourth Proportional to 1,918,128.39, 2,646,828.72 and 1,058,633.29

Step by Step Solution

1. Step 1: Write the proportion equation
   1,918,128.39 : 2,646,828.72 = 1,058,633.29 : x
2. Step 2: Convert to fraction form
   1,918,128.39/2,646,828.72 = 1,058,633.29/x
3. Step 3: Cross multiply
   1,918,128.39x = 2,646,828.72 × 1,058,633.29
4. Step 4: Simplify right side
   1,918,128.39x = 2,802,020,989,303.02
5. Step 5: Solve for x
   x = 2,802,020,989,303.02/1,918,128.39
6. Step 6: Final answer
   x = 1,460,809.93