Finding the Fourth Proportional to 2,142,978.39, 2,957,307.75 and 1,176,111.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142,978.39 : 2,957,307.75 = 1,176,111.18 : x
2. Step 2: Convert to fraction form
   2,142,978.39/2,957,307.75 = 1,176,111.18/x
3. Step 3: Cross multiply
   2,142,978.39x = 2,957,307.75 × 1,176,111.18
4. Step 4: Simplify right side
   2,142,978.39x = 3,478,122,707,475.65
5. Step 5: Solve for x
   x = 3,478,122,707,475.65/2,142,978.39
6. Step 6: Final answer
   x = 1,623,032.10