Finding the Fourth Proportional to 1,093,128, 1,640,538.72 and 758,518.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,093,128 : 1,640,538.72 = 758,518.08 : x
2. Step 2: Convert to fraction form
   1,093,128/1,640,538.72 = 758,518.08/x
3. Step 3: Cross multiply
   1,093,128x = 1,640,538.72 × 758,518.08
4. Step 4: Simplify right side
   1,093,128x = 1,244,378,280,060.06
5. Step 5: Solve for x
   x = 1,244,378,280,060.06/1,093,128
6. Step 6: Final answer
   x = 1,138,364.66